• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2002.10a
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• pp.314-318
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• 2002

Several types of burrs form on the edges of all machined and stamped parts. These burrs must be removed to prevent interference fits or short circuits, to improve fatigue life or to prevent injury. Despite the full or partial automation of FMC or FMS, deburring operations to obtain workpiece with fine surface quality are difficult to be automated since the occurrence and condition of burr are not constant. This study focused on developing micro-deburring technique for small electro- parts produced by press process. The successful performance was demonstrated by deburring experiment using the powder blasting.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.190-195
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• 2008

Surge proof equipment is an installation to make surge flow on the ground promptly so as to reduce surge-related damage on infrastructure, not to prevent surge from falling down on infrastructure directly. Compared with classical line individual earth, High speed line common earth has higher surge characteristic and plays a significant role to prevent infrastructure damage and injuries from surge, or short circuit accident between 25kV catenary and rail. In this paper, we analyzed the case of accident that caused communication/signaling system impaired while a tractor crossing level crossing at Honam line; in addition, we examined the accident reduction measures to minimize injury and property damage from cutting accidents with respect to common earth network.

• Journal of Life Science
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• v.20 no.4
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• pp.555-560
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• 2010

The objective of this study was to investigate levels of serum creatinine, CuSOD and MnSOD protein expression in the kidney after renal ischemic reperfusion with pre-exercise using heat shock protein 70.1 in knock-out mice (KO). The C57/BL6 strain (Wild type: WT) and KO were divided into 4 groups as follows: Sham control group (Sham), pre-exercise group (Ex), pre-exercise +ischemia group (Ex+IR), and ischemia group (IR). CuSOD and MnSOD expression were significantly decreased (p<0.01, p<0.05) and blood creatinine concentration was significantly increased (p<0.01) in the IR group of KO. In contrast, CuSOD and MnSOD expression in the Ex+IR group of KO were higher than the IR group, while creatinine concentration was significantly lower. These results suggest that Hsp70 is directly correlated to renal ischemic reperfusion injury. Pre-exercise in renal ischemia might prevent or inhibit positive oxidative stress inhibitory effects by increasing anti-oxidative enzymes (CuSOD, MnSOD) within the kidney and improve to prevent renal function. Thus, pre-exercise may have a protective role against renal injury after renal ischemia.

• Journal of Chest Surgery
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• v.23 no.1
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• pp.178-181
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• 1990

We experienced a rare case of a recanalization and aneurysmal formation of the previously ligated PDA on 18 year-old-girl. Continuous murmur was noted 3 months after operation and this recanalization was confirmed by angiography and cardiac catheterization. It was impossible to mobilize aneurysmal PDA with safety, so we closed the defect using left heart bypass to prevent spinal card injury. Postoperative course was uneventful and the patient was discharged in good condition.

• Journal of Trauma and Injury
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• v.25 no.3
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• pp.91-93
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• 2012

Postraumatic lung hernia is a rare occurrence. A number of cases reported in the literature have been treated with early thoracotomy to repair partial protruded lung and pleura to prevent strangulation and incarceration. We present a case of a 45-year-old patient of left posttrumatic lung hernia, in which closed digital reduction was successful. The strategy of the management approach could be established by further accumulated experience.

• Journal of the Korea Safety Management & Science
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• v.5 no.2
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• pp.1-10
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• 2003

The discussion for the structure of the intergrated management system(IMS) isbeing made process vigorously in the time of industrial standard in this study. Therefore, safety, health, environment management system was compared, the management method was found, and task standard and object were selected. The structure of database will be possible to prevent industrial injury and environment pollution prevention.

• Journal of Korean Foot and Ankle Society
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• v.16 no.4
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• pp.203-209
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• 2012

Lisfranc joint injuries are rare and account for 0.2% of all injuries. The pattern of Lisfranc injuries varies from low-energy ligamentous sprain to high-energy fractures or crushing injuries. Early diagnosis and appropriate treatment of Lisfranc injuries are important to prevent chronic foot pain and dysfunction.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2021.05a
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• pp.159-160
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• 2021

Every year on a construction site safety scale of the crash of an accident, but the large and small, accounting for more than half. In Construction Field wearing safety belts for their safety, but the impact of fracture, including the risk of injury occurs. Accordingly, the death as well as by the crash, injuries that can reduce the size of the invention was driven by safety belts.

• The Korean Journal of Health Service Management
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• v.14 no.1
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• pp.67-78
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• 2020

Objectives: Using data from the 1styear of the 7th National Health and Nutrition Survey, this study administered a questionnaire to patients with oral damage and examined the type of medical care used based on the nature of the injury, further characterized by age group and sex. Methods: Of the 8,150 respondents, this study selected those who participated in the health survey and oral exam survey, excluding surveys with missing values, and set 7,681 people as the research participants. This study used SPSS Windows version 23.0(SPSS Inc. IL, USA) as the statistics program and applied the chi-square test (p) based on a complex sample and logistic regression analysis. Results: In the analysis of the type of tooth damage, there was a significant difference (p<.001) in the number of male patients who were injured due to exercise, violence, and safety accidents compared to females. However, there was no significant difference in their type of medical security and whether or not they visited a dental clinic. The patients with private insurance showed relatively high use for tooth extraction and oral surgery (p<.001). Conclusions: The best way to prevent tooth damage is to prevent the accident. For sports or exercises which may cause tooth damage, protective gear, such as a mouthpiece, should be used to prevent tooth damage.

• Journal of the Korean Professional Engineers Association
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• v.30 no.5
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• pp.96-104
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• 1997

This study analyze industrial safety and health planning report for manufacture. The purpose of accident analysis is to obtain accurate and objective information about the causes of accidents in order to prevent accidents from reoccurring. This study investigated the causes and conditions of occupational accidents in Korean industry. As the most accidents are occurred in lifting material, the questionnaire analyses about injuries are operated for occur to deal with the Manual Materials Handing. The results show that there are some characteristics in the accidents of Korean industry since 1986: (1) accidents rates tend to have lower since 1983(1994-1.18%, 1995-0.99%, 1996-0.88%), (2) larger companies tend to have lower accident rates than the smaller ones, (3) inexperience is related to high accident rates(1995-51.26%, 1996-48.82%1, because of the careless education for freshman such as OJT which in order to prevent accident, and (4) the body sites most vulnerable to injury are the hands and fingers and increased the back(caused of Back pain). The results of questionnaire analysis show that operator(n= 104) interested in reinforce the back & belly(42.86%). These finding identified in this study can be used to prevent the industrial accidents, and used to improving directions based on analyzed result.