• Nuclear industry
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• v.36 no.10
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• pp.77-79
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• 2016

• Environmental engineer
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• v.19 s.208
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• pp.18-21
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• 2003

• The Journal of the Korea Contents Association
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• v.16 no.3
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• pp.732-741
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• 2016

This research examines the relationships and effects among ROKAF officer's job satisfaction and psychological well-being and their self-leadership. Multiple regressions were conducted using 211 data. Results are as follows. First, Job satisfaction, psychological well-being and self-leadership were significantly positively correlated with each other. Second, as for the effects of subordinate factors among job satisfaction and psychological well-being on the subordinate factors of self-leadership, personal growth and controling environment of psychological well-being and administration of job satisfaction influenced self-expectation of self-leadership. For the self-reward of self-leadership, personal growth, meaning of life and autonomy of psychological well-being and relationship and reward system of job satisfaction influenced it. Finally, as for the effects of subordinate factors among job satisfaction and psychological well-being on self-leadership, administration and relationship of job satisfaction and personal growth, meaning of life and autonomy of psychological well-being influenced it. Finally implications and limitations of this research are discussed.

• The Journal of the Korean bone and joint tumor society
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• v.20 no.2
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• pp.89-93
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• 2014

Clear cell chondrosarcoma is a very rare malignant bone tumor that shows a strong predilection for the epiphysis or metaphysis of long bones. Many studies have reported that the proximal end of the femur is the most commonly affected site, followed by the proximal end of the humerus. Histopathologically, tumor cells of this type have centrally located round nucleoli with clear cytoplasm and a distinct cytoplasmic membrane. Generally, clear cell chondrosarcomas is not confused with conventional chondrosarcomas. However, when it involves the diaphysis in long bones, diagnosis can be hindered, as only three reports of this exist in the literature. We report herein an unusual case of clear cell chondrosarcoma of the tibial diaphysis in a 42-year-old male.

• Proceedings of the ESK Conference
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• 1997.10a
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• pp.97-105
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• 1997

급속히 변화하는 현대사회에서 생활수준의 향상과 식생활의 서구화 및 신체의 활동량 감소, 과잉 영양공급으로 체중이 증가하여 체형의 변화가 일어난다. 이에 본 연구에서는 체형을 변화시키는 여러 요인 중에서 피하지방으로 인한 변화를 알아보기 위해 초음파 피하지망 계측기를 사용하여 20대 남성을 대상으로 19 .approx. 24세를 집단1, 25 .approx. 28세를 집단2로하여 각 집단간의 피하지방 분포경향과 각 집단간의 피하지방 계측피를 요인분석하여 남성복 의복제작 및 현대남성의 올바른 체형해석을 위한 기초자료 제공이 본 연구의 목적이다. 피하지방이 침착하기 쉬운 부위는 허리앞1/2과 배앞 1/2로 나타 났고, 피하지방이 침착하기 어려운 부위는 하퇴전면으로 나타났다. 피하지방두께 계측에서 집단간 유의 차 검증결과 20대 후반으로 연령이 증가함에 따라 작은 폭으로 지방침착이 일어났다. 집단1의 요인분석 결과 요인1은 허리부위, 요인2는 체간부1/2과 체간부 측면부위로 나타났다. 집단2의 요인분석결과 요인 1은 윗가슴부위와 허리부위, 요인2는 전체적부위로 나타났다. 전체집단에서는 요인분석결과 요인1은 상 지, 하지부위, 요인2는 허리부위로 나타났다. 연령의 증가와 함께 피하지방 침착이 체간부 하부인 허리 와 배를 중심으로 이루어지는 것으로 나타났다.

• Clinics in Shoulder and Elbow
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• v.13 no.1
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• pp.1-6
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• 2010

Purpose: To evaluate the results and complications of antegrade intramedullary interlocking nailing in humerus shaft fractures. Materials and Methods: We evaluated the clinical outcomes, radiologic results and complications in 47 patients with humerus shaft fracture treated with antegrade intramedullary interlocking nailing, and followed up until bony union. Bony union was confirmed by serial plain radiographs and the clinical outcomes were assessed according to the ASES scoring system. Results: Bony union was confirmed in 41 (87.2%) out of a total 47 patients, and the mean union period was 14.5 weeks. Major complications were as follows: 6 non-union, 3 delayed union, 2 intraoperative posterior cortex fracture in the distal humerus and 2 permanent shoulder pain, including 1 case of adhesive capsulitis. The clinical outcomes were as follows: 29 excellent, 11 good, 4 fair and 3 poor. Satisfactory outcomes were demonstrated in 40 patients (85.1%). Conclusion: Anterograde intramedullary interlocking nailing as treatment for humerus shaft fracture showed satisfactory bony union and clinical outcomes. It is considered an efficacious treatment, especially in patients with associated injury, such as multiple fractures and segmental fracture.

• Journal of Chest Surgery
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• v.35 no.2
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• pp.87-93
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• 2002

Background: Predicting the important role of intercellular adhesion molecule-1 expression on the acute ischemia-reperfusion injury, we set out to demonstrate it by assessing the degree of expression of ICAM-1 after warm ischemia-reperfusion in canine unilateral lung ischemia model. Material and Method: Left unilateral lung ischemia was induced by clamping the left hilum for 100 minutes in seven adult mongrel dogs. After reperfusion, various hemodynamic pararmeters and blood gases were analyzed for 4 hours, while intermittently clamping the right hilum in order to allow observation of the injured Ieft lung function. The pulmonary venous blood was collected serially to measure TNF- and cICAM-1 level. After 4 hours of reperfusion, the lung tissue was biopsied to assess cICAM-1 expression, and to measure tissue malondialdehyde(MDA) and ATP level. Result: The parameters including arterial oxygen partial pressure, pulmonary vascular resistance and tissue MDA and ATP level suggested severe lung damage. Serum TNF-$\alpha$ level was 8.76$\pm$2.37 ng/ml at 60 minutes after reperfusion and decreased thereafter. The cICAM-1 level showed no change after the reperfusion during the experiment. The tissue cICAM-1 expression was confirmed in 5 dogs. Conclusion: The increase of TNF-$\alpha$ Ievel and expression of tissue ICAM-1 were demonstrated after ischemia reperfusion injury in canine lung model.

• Clinics in Shoulder and Elbow
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• v.16 no.2
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• pp.107-114
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• 2013

Purpose: This study is designed to evaluate the clinical and radiographical results for the displacement of fracture fragments after interlocking intramedullary nailing in humeral shaft fractures. Materials and Methods: We retrospectively reviewed the results of 8 cases of humeral shaft fractures that have displacements of over 10 mm and under 20 mm after interlocking intramedullary nailing between July 2004 and August 2011. The mean age was 54.1 years (range, 43 to 70 years) and there were 3 male and 5 female patients. Radiographically, the time to bony union, change of displacement and angulation of the fracture site, and degree of improvement of these two factors were measured. Clinically, the range of motion of shoulder and elbow joints, postoperative pain and complications were evaluated. Results: All cases showed complete bony union in last follow-up. The mean time to bony union was 16.1 weeks. At the last follow-up, almost all cases had normal range of motion of shoulder and elbow joints. But, one case had stiffness of shoulder joint. Therefore, arthroscopic capsular release and manipulation was performed. One case had transient shoulder pain and the other case had transient elbow pain. In the two cases, pull-out of proximal interlocking screw were noted, but they finally had bony union. Conclusion: Although considerable displacement of fracture fragments after interlocking intramedullary nailing in humeral shaft fractures was present, we had excellent radiographical and clinical outcomes. Therefore, an additional procedure, such as open reduction or another fixation for the fracture site, was not necessary.

• Journal of the Korean Orthopaedic Association
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• v.52 no.1
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• pp.7-14
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• 2017

Purpose: To report the clinical results from surgical treatment for clavicle shaft fracture by percutaneous intramedullary fixation with Steinmann pins. Materials and Methods: Between January 2004 and June 2014, the medical records of 135 patients who underwent percutaneous intramedullary fixation with Steinmann pins were reviewed. The mean follow-up periods were 15 months. The functional results were evaluated with The Disabilities of the Arm, Shoulder and Hand (DASH) score and Constant score. The clinical results were evaluated with the shortened length of the clavicle, length of surgical wound, operation time and Kang's criteria. Results: The mean bone union period was 11.6 weeks (8-16 weeks). The mean DASH score was 11.8. The mean Constant score was 91.2. The mean shortened length of the clavicle was less than 20 mm. The mean length of surgical wound was 1.2 cm (0.7-1.5 cm). The mean operation time was 18 minutes (10-35 minutes). Using Kang's criteria, 131 out of 135 patients (97.0%) showed good results. Complications included were 3 pin migrations and 2 non-unions. Conclusion: Percutaneous intramedullary fixation with Steinmann pins showed good results for treating clavicle shaft fracture.

• Convergence Security Journal
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• v.22 no.4
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• pp.35-44
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• 2022

Among the five promotion strategies of Defense Innovation 4.0(DI 4.0), the military structure/operation optimization strategy aims to innovate the military structure based on advanced science&technology(S&T), and to integrate advanced S&T in the field of defense operation such as education&training and human resource development. As the future battlefield expands to AI-based unmanned/robot combat systems, space, cyberspace, and electromagnetic fields, it is necessary to train officers with the capabilities required in these battlefields. It is necessary to develop capabilities from junior officers who will lead the future battlefield to operating core advanced power based on the 4^th industrial revolution S&T. We review the education system of the military in universities and propose a method of redesigning the education system that is compatible with DI 4.0 and can develop technology-intensive capabilities based on advanced S&T. We propose a operation plan of major and extra-programs that can develop the capabilities of junior officers required for the future battlefield, and also suggest ways to support the army's practical training.