• Journal of Trauma and Injury
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• v.25 no.4
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• pp.261-266
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• 2012

Purpose: Traumatic pancreatic injury is not common in abdominal trauma injury. However, the morbidity and the mortality rates of patients with pancreatic injury, which are related with difficulties of initial assessment, establishment of diagnosis, and treatment are relatively high. The aim of this study is to review our institution's experience and suggest a diagnosis and therapeutic algorithm for use in cases involving traumatic pancreatic injury. Methods: Eighteen(18) patients with blunt pancreatic injury from January, 2004 to October 2012 were included in this study. We analyzed treatment and diagnosis method, other organ injury, treatment interval, hospital stay and complications retrospectively. Results: Nine patients were treated with conservative medication and another nine patients were treated surgically. Complications occurred in nine patients, and one patient died due to intraventricular hemorrhage and subdural hemorrhage with multiple organ failure. Delayed surgery was performed in three cases. The early and delayed surgery groups showed difference in hospital stay and intensive care unit stay. Delayed surgery was associated with a longer hospital stay (p=0.007) than immediate surgery. Conclusion: In blunt pancreatic trauma, proper early diagnosis and prompt treatment are recommended necessity. Based on this review of our experience, we also suggest the adoption of our institution's algorithm for cases involving traumatic pancreatic injury.

• Knee surgery & related research
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• v.30 no.4
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• pp.303-310
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• 2018

Purpose: The purpose of this study was to investigate whether surgical experience could improve surgical competency in medial open wedge high tibial osteotomy (MOWHTO). Materials and Methods: One hundred consecutive cases of MOWHTO were performed with preoperative planning using the Miniaci method. Surgical errors were defined as under- or overcorrection, excessive posterior slope change, or the presence of a lateral hinge fracture. Each of these treatment failures was separately evaluated using the cumulative summation test for learning curve (LC-CUSUM). Results: The LC-CUSUM showed competency in prevention of undercorrection, excessive posterior slope change, and lateral hinge fracture after 27, 47, and 42 procedures, respectively. However, the LC-CUSUM did not signal achievement of competency in prevention of overcorrection after 100 procedures. Furthermore, the failure rate for overcorrection showed an increasing tendency as surgical experience increased. Conclusions: Surgical experience may improve the surgeon's competency in prevention of undercorrection, excessive posterior slope change, and lateral hinge fracture. However, it may not help reduce the incidence of overcorrection even after performance of 100 cases of MOWHTO over a period of 6 years.

• Convergence Security Journal
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• v.21 no.2
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• pp.81-88
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• 2021

Officers and noncommissioned officers are the leaders of the military. Every year, more than 5,000 first-time officers are commissioned and perform their duties in various parts of the country. There is a conflict between officers and noncommissioned officers over the efficiency of experience. First-time officers are experiencing experience and a loss of authority from older noncommissioned officers and a failure to obey orders. Noncommissioned officers have complaints about first-time officers who want to direct only by class.Conflicts between officers and noncommissioned officers have existed in the past, but some first-time officers were resolved when they gained experience. Recently, the chief executives protested against the Chief of Staff's words and actions. I would like to study the cause of conflict between officers and noncommissioned officers and suggest solutions.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 1998.10a
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• pp.82-90
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• 1998

Machines that normally operate under fluid film lubricated condition also experience surface damage. This is largely due to the failure of the lubricant film which leads to boundary lubrication. Thus, it is important to have a good understanding of boundary lubrication behavior. In this paper the major tribological parameters that influence the boundary lubrication properties are evaluated. It is shown that disk roughness, hardness and normal load affect the friction and wear of metals in boundary lubrication. Also, the mechanism of surface damage is attributed to abrasion and wear particle interaction.

• Journal of Korean Neurosurgical Society
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• v.53 no.5
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• pp.303-304
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• 2013

Rhabdomyolysis is a rare but potentially life-threatening disorder caused by the release of injured skeletal muscle components into the circulation. The authors report a case of severe head injury, in which a hyperosmolar state and continuous seizure complicated by severe rhabdomyolysis and acute renal failure evolved during the course of treatment resulted in a fatal outcome despite intensive supportive treatment. Our bitter experience suggests that rhabdomyolysis should be born in mind in patients with severe head injury who may develop hyperosmolar state and continuous seizure.

• 연구논문집
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• s.25
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• pp.5-12
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• 1995

Mold platen are one of the most important structural components of the injection molding machine. Mold platen had been designed, and manufactured based on the experience and the method of trial and error. Recently, as the computer progress, the numerical simulation method using commercial finite element analysis code has been used to analyze the characteristics of components. It's a urgent problem to reduce the weight of mold platen while preserving the safety and reliability for the structual failure. Finite element analyses to establish basic design technologies and reducing the weight of mold platen were carried out. As result, we are obtained the about 10% reducing the weight for mold platen.

• Journal of Chest Surgery
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• v.11 no.4
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• pp.428-432
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• 1978

Between Jan. and Oct. 1978, mitral valve Replacement had been performed on eight patients using porcine aortic valve mounted on flexible polypropylene or Egyloil wire and Dacron covered stent. Mitral valve replacement was performed on five, mitral valve replacement with tricuspid valve replacement on two, and mitral valve replacement with tricuspid valve annuloplasty on 1 patient using five Carpentier and five Hancock Xenograft. Overall operative deaths were 2 cases. All other 6 cases did well after surgery and improved. No systemic thromboembolism occurred without anticoagulant-No valve failure took place. The results are satisfactory.

• Journal of Preventive Medicine and Public Health
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• v.22 no.1 s.25
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• pp.1-7
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• 1989

This paper examines the failure to promote adequate preventive health care in the U.S. It focuses specifically on the preventive health services of screening, counseling, and immunization. It explores evidence on their effectiveness, as well as coverage under current private and public health insurance plans. It concludes with a proposal to expand health insurance coverage for preventive services and to reimburse physicians directly for preventive health services provided to patients.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.647-652
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• 2008

Railway signal system has been more complex, larger and required high reliability. So, maintenance by experience must be changed to optimize maintenance program or introduced systematic method for estabilish new maintenance program. In this paper, we introduced the maintenance period decision method which are Age based method and Block replacement method based on the failure distribution for the equipment. So, we allocated optimum maintenacne period for the railway signal equipment using block replacement method.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.4
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• pp.265-275
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• 2018

This study is a qualitative investigation that used Colaizzi's (1978) phenomenological method to evaluate the meaning and nature of the experience of dialysis of eight long-term (>30 years) hemodialysis patients with chronic renal failure. Data were collected from February 27, 2017 to May 30, 2017 by in-depth interviews. Respondents were then divided into three categories, 'entirely different life', 'getting back up again' and 'focusing on survival' with nine theme clusters and 22 themes. In general, patients initially experienced an entirely different life and overcame a difficult situation when beginning dialysis, then came to know methods for self-care, shared the experience of dialysis, and focused on survival while receiving dialysis over the long-term. Development of variety of education methods depending on long-term experience of dialysis and nursing care intervention to enable chronic patients to adapt to dialysis and continue their own self-management is necessary.