• Journal of the Korean Burn Society
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• v.16 no.2
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• pp.99-103
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• 2013

Purpose: The biggest problem of wound healing is a possible occurrence of lesion. Especially, in the case of patients who have a skin injury around exposed body parts, if their treatment period drag on for long time, they can suffer from aftereffects and the costs can be passed on to a society. Therefore, in this research, we investigated the need to develop the effective medicine and appliances for the patients by examining which therapy methods are being applying to the skin damage and what is the advantage and limit by evaluating the patient's satisfaction level. Methods: We carried out an online and offline survey targeting medical teams in order to analyze device for wound care. A total of 125 medical teams applied to the research, and investigate the level of customer satisfaction. Results: The moist dressings are the most used method for wound healing. When it comes to the level of customer satisfaction, biological dressing product also has a high satisfaction level. However its high cost tends to limit the use. Conclusion: This research reached a conclusion that it is need to develop a low cost and high efficiency wound care product considering the fact that its high cost and low efficiency induced economic problems. Generally, it is needed to develop a product for skin regeneration based on biological technologies, not a product just for damage cure.

• The Journal of Korean Physical Therapy
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• v.11 no.3
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• pp.115-121
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• 1999

The effects of scald bum Injury ($40-45\%$ of total body surface area), there were not inhalation and secondary infection, on the histological changes and the levels of oxygen free radical generating and scavenging enzymes have been determined in liver tissue of rat models. It was found that dermal epithelium was left out with edema of dermis layer and hydorpic swelling of hepatocytes, Burn injury increased liver weight (L.W./B.W.) and serum aspartate aminotransferase content (pThe data of this study suggest that liver damage Induced by scald burn injury leads to dysbalance of oxygen free radical generating and scavenging enzymes.

• Transactions of the Korean Society of Mechanical Engineers
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• v.12 no.6
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• pp.1358-1371
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• 1988

The combustion process is the most important process in the S.I. engine since it determines performance and emissions. As the flame propagates slowly due to EGR or lean mixture, the fast burn system is widely used in the modern engines in order to improve engine performance. As the basic research for the fast burn system of the S.I engine, this study is aimed to identify the effects of the intake port design on the air motion inside a cylinder. In this study various intake ports were designed and tested. Swirl levels for the different intake ports were measured by a swirl meter and LDv.Also transient air motion inside a cylinder is further investigated following the motion of the boston. Out of the various intake ports tested in this study the masked shroud head (MSH) generates the highest swirl while keeping satisfactory volumetric efficiency. The MSH port also produces high level of turbulence by shearing action between cylinder wall and swirl.

• Journal of Korean Academy of Nursing Administration
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• v.17 no.4
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• pp.423-431
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• 2011

Purpose: This study was conducted to investigate the relationship of burn out, emotional labor and self-efficacy in nurses, and to identify predictors of burnout. Method: The participants were 268 nurses working in C university hospital in G city. Data were collected from May 1 to May 31, 2010, and analyzed using SPSS/WIN 12.0. Results: The mean score per item for burnout was 3.13, the mean emotional labor score was 3.15, and the mean of self-efficacy score was 3.42. Burnout showed negative correlation with self-efficacy (r=-.339, p=.000), and showed positive correlation with emotional labor (r=.511, p=.000). Variables that predicted burnout were emotional labor, self-efficacy, gender, number of assigned patient per duty (37.8%). Conclusion: The findings of this study indicate a need to develop programs for nurses to increase self-efficacy and to control the emotion, and the need for further studies to examine causal relationship among burn out, emotional labor and self-efficacy.

• Proceedings of the KIEE Conference
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• 2000.07c
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• pp.2110-2112
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• 2000

This paper describes the self healing characteristics of a metalized polypropylene film(MPPF) used for energy storage capacitors. In the experiment, a d.c. voltage was applied to the MPPF, and the partial discharge inception voltages(PDIVs), the applied voltages at self healing, the burn out area and the current in the grounding conductor were measured and recorded. As a result, it was found that no PDs were found till the first pre-self healing occurred, and the applied voltage at self healing was increased with PPF thickness. Self healing was much more dependant on the shape of the air void than its diameter and the burn out area and the current in the grounding conductor at self healing was also increased with the applied voltage at self healing.

• The Journal of Korean Academy of Prosthodontics
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• v.16 no.1
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• pp.45-47
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• 1978

We use investment to retain the mould of the wax pattern in making dental metal castings. A fin on the metal casting is occasionally formed due to several factors. The factors making the fin are improper burn out time and temperature, improper W/P ratio of investment and lining of asbestos in casting ring. The purpose of this study is to investigate the effect of W/P ratio of investment on the fin formation. Except the W/P ratio of investment which used to invest the wax pattern, the study was done under same condition; burn out time and temperature, W/P ratio of refractory cast(W/P=0.12) and asbestos lining in casting ring. The obtained result is that the fin is more likely to be formed on the casting which invested with higher W/P ratio of investment to that of refractory cast.

• Journal of Korean Public Health Nursing
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• v.15 no.1
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• pp.83-95
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• 2001

The purpose of this study is to examine intensity of pain and anxiety of burn patients. This study selected 99 adult patients of 18 years old or older who have been hospitalized and treated for a second-degree burn at the surgery ward or burn ward of 3 university hospitals which are located in 2 metropolitan cities, and a university hospital in Seoul Special City from July 1 to October 20, 2000. This study used STAI(State-Trait Anxiety Inventory) developed by Spielberger, and translated by Kim, Jung Taek and Shin, Dong Kyun to examine the degree of anxiety and VAS to examine the pain. This study was carried out by interview and using SPSS 9.0 statistical program. Results were as follows : 1) As for general characteristics of the subjects, they were mostly male. 30s-40s, married, and high school graduates. 2) Forty-seven patients were burned by fire and $49.6\%$ of the patients had burn 10 to $20\%$ of BSA. seventy-nine percents of patients received one dressing change a day and $74.3\%$ received medication once or twice a day. 3) As for intensity of anxiety and pain. the mean intensity of pain was 6.41. The intensity of trait anxiety and the state anxiety were 39.76. and 51.81. 4) Subject's age was significantly different in their pain intensity and other variables were insignificant. Correlations between trait-anxiety and state-anxiety(r=.286, p=.004), and state-anxiety and VAS(r=.294, p=.003) showed weak correlation. There wasn't statistically any significance in trait- anxiety and VAS(r=.183, p=.070).

• Archives of Plastic Surgery
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• v.35 no.4
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• pp.407-412
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• 2008

Purpose: Hydrofluoric acid(HF) is one of the most dangerous mineral acids with the dissociated fluoride ions. The initial corrosive burn is caused by free hydrogen ion, and the second and more severe burn is caused by penetration of fluoride ions into subcutaneous tissues. Silver is a cation producing dressing, an effective antimicrobial agent, but older silver-containing formulations are rapidly inactivated by wound environment, requiring frequent replenishment. But, $Acticoat^{(R)}$ is a relatively new form of silver dressing which helps avoid the problems of earlier agents. The aim of this study is to evaluate effects of $Acticoat^{(R)}$, silver-containing dressing on the treatment for HF injury wound. Methods: From september 2006 to september 2007, the study was carried out with 10 patients who had HF partial thickness burns. $Acticoat^{(R)}$ dressing and 10% calcium gluconate wet gauze dressings in 10 cases. As a principle, in the emergency treatment, partial or complete removal of the nail and early bullectomy along with copious washing with normal saline was done, depending on the degree of HF invasion of the wound. Wound was dressed with $Acticoat^{(R)}$ and 10% calcium gluconate solution. The effect of dressing was investgated by serial bacterial culture and wound exudates assessment. Results: We therefore reviewed 10 cases of HF-induced chemical burns and treatment principle. The 10 cases who came to the hospital nearly immediately after the injury healed completely without sequelae. Conclusion: As the industrial sector develops, the use of HF is increasing more and more, leading to increased incidences of HF-induced chemical burns. The education of patients regarding this subject should be empathized accordingly. In conclusion, $Acticoat^{(R)}$ dressing is a better choice for HF partial thickness burn injuries because of shorter healing time, less pain and more comfortable dressing.

• Journal of Technologic Dentistry
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• v.22 no.1
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• pp.69-78
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• 2000

The microstructure and corrosion behavior of commercially dental casting gold alloys were investigated to clarify the effect of burn-out temperature and cooling rate. In the case of water quenching after casting, only the αphase, which is typical dendritic microstructure of golda alloy, was detected. However, the precipitates along the grain boundary were detected only at the slow cooling rate and they increased inversely proportional to the burn-out temperature. This might be due to the time difference which solute atom could diffuse. EPMA and SEM results also demonstrated that the precipitate should be lamellar structure consisted of Ag rich phase(${\alpha}_1$) and Cu rich phase (${\alpha}_2$). In terms of corrosion, the galvanic coupling was formed due to the difference of composition between precipitates and matrix at the slow cooling rate. In the case of water quenching, the critical current density($i_p$) which indicate the degree of corrosion was lowest at $650^{\circ}C$ and below the burnout temperature, $i_p$ increased with it because of the effect of grain boundary segregation. But above the temperature, $i_p$ increased with it. This may be due to the strain field effect by residual thermal stress.

• Journal of Digital Convergence
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• v.13 no.2
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• pp.205-213
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• 2015

This study is a survey and research attempted to seek the ways of effective human resource management and improving the quality of nursing - targeting the nurses working for the general hospitals - by analyzing the impact of job satisfaction and job stress factors on exhaustion and turnover intentions, so as to find the nurses' turnover factors and remove those factors in advance. Although we cannot raise job satisfaction to the level we are satisfied by monetary compensation, i.e. salary alone, but as seen in this study, it is worth considering such ways as the subjects with high salaries showed relatively higher job satisfaction. Finally, in order to prevent the turnover of the competent nursing staff at an early stage, active systematic supplements and efforts are required; it is also necessary to provide constant job training, by taking into account of the specificity of nursing units and to secure and place adequate nursing staff, and to establish fair and objective promotion criteria.