• Convergence Security Journal
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• v.15 no.4
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• pp.3-9
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• 2015

A web application that allows a web service created by a internal developer who has security awareness show certain level of security. However, in the case of development by outsourcing, it is inevitable to implement the development centered on requested function rather than the issue of security. Thus in this paper, we improve the software testing process focusing on security for exclusion the leakage of important information and using an unauthorized service that results from the use of the vulnerable web application. The proposed model is able to consider security in the initial stage of development even when outsourced web application, especially, It can prevent the development schedule delay caused by the occurrence of modification for program created by programer who has low security awareness. This result shows that this model can be applied to the national defense area for increasing demand web application centered resource management system to be able to prevent service of web application with security vulnerability based on high test.

• The Journal of Korean Physical Therapy
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• v.23 no.6
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• pp.15-22
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• 2011

Purpose: This research investigated falls due to obstacles that occur among elderly people by assessing changes in the values of plantar foot force, peak force, and plantar foot pressure in elderly subjects while they were stepping over obstacles of different heights. Methods: The subjects were 20 elderly people aged 70-80 years; Pressure was measured on flat ground(0 cm), and after installing obstacles of 8 cm and 12 cm using the F-scan system, which is a resistance-type pressure sensor. A one-way analysis of variance was performed to compare pressure on each part of the foot according to various heights after collecting data using the Tekscan program. The least significant difference test was used for the post-hoc analysis, A p-value <0.05 was considered significant. Results: The force value for the toe area (parts 1, and 2) and contact pressure increased significantly with the 12 cm obstacle (p<0.05). The peak force value and the peak contact pressure for part 1 increased significantly with the 12 cm obstacle (p<0.05). Conclusion: Larger changes appeared in the functions and structure of the foot while subjects walked over obstacles of different heights compared to flatland walking. This result suggests that people have safety strategies to prevent falls, and that there is a need for a more realistic approach through practice to overcome obstacles of various heights to prevent falls.

• Korean Journal of Community Nutrition
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• v.15 no.6
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• pp.783-795
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• 2010

This study was intended to investigate the risk of metabolic syndrome (MS) in healthy 92 male smokers (mean age: $44.4\;{\pm}\;7.8\;yrs$). We investigated the anthropometric assessment and dietary intake survey for 2 days by 24-recall method, also blood pressure and serum lipids were measured. The average numbers of cigarettes smoking a day were 21.3/d, smoking duration were 21.5 years. The proportion of fat energy was 24.9% and intakes of vitamin B2, folate, calcium, potassum and fiber were lower than KDRI. The body mass index (BMI) and body fat % were 24.8, 23.9% respectively. The systolic ($134.1\;{\pm}\;1.4\;mmHg$) and the diastolic blood ($87.9\;{\pm}\;1.1\;mmHg$) pressure were in borderline hypertension. Among biochemical parameters, TG ($173.6\;{\pm}\;9.4\;mg/dL$) and fasting blood glucose ($109.0\;{\pm}\;2.4\;mg/dL$) levels were out of normal values. The most occurred problem among the risk factors related to MS was the borderline hypertension (63%) in subjects. Regarding the correlations of anthropometric data with biochemical factors, TG was significantly correlated with the BMI, body fat % and waist circumference. Smoking years showed positive correlation with AI. These results suggest that the smoking habit has significant relations with the risk factors of MS. Therefore, quitting is necessary to prevent MS, and nutrition education and dietary management program are required to prevent the degenerative disease.

• Fire Science and Engineering
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• v.24 no.2
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• pp.154-161
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• 2010

There have been various discussions to prevent violence to 119 emergency medical technicians, and the aims of the were as follow ; first, the staff dispatched to the scene should be reinforced so that the patients committing violent acts can be subdued. Secondly, self-defense devices should be provided to 119 emergency medical technicians so that they can use them in a dangerous situation and escape from it. And finally, 119 emergency medical technicians should be allowed to refuse to transport the patients when they or their guardians do violence to them in order to prevent potential violent cases. When countermeasures after violence is committed, it is important to secure evidence and determine strongly to bring charges to the offenders rather than agree to overlook the violence in order to correct them right. It is necessary to introduce a support program to help the victim technicians concentrate on their physical and mental treatment. Violence to 119 EMT should be punished so that the society will think it is natural to punish such offenders. In a safer environment, 119 EMT can perform their duties and it is very important to draw this consensus.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.26 no.4
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• pp.82-90
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• 2003

The Systems Engineering, as a methodology for engineering and management of today's ever-growing complex system, is a comprehensive and iterative problem-solving process. The process centers on the analysis and management of the stakeholders' needs throughout the entire life-cycle of a system and searches for an optimized system architecture. There are many essential needs and requirements to be met when a system development task is carried out. Systems Engineering Management Plan(SEMP), as a specification for system development process, must be established to satisfy constraints and requirements of stakeholders successfully and to prevent cost overrun and schedule delay. SEMP defines technical management functions and comprehensive plans for managing and controlling the entire system development process, specialty engineering processes, etc. Especially. in the case of a large-scale complex system development program where various disciplinary engineering such as mechanical; electrical; electronics; control; telecommunication; material; civil engineering etc. must be synthesized, it Is essential to develop SEMP to ensure systematic and continuous process improvements for quality and to prevent cost/schedule overruns. This study will enable the process knowledge management on the subject of SEMP as a core systems engineering management effort, that is, definitely defining and continuously managing specification of development process about requirements, functions, and process realization of it using a computer-aided systems engineering software. The paper suggests a systematic SEMP development process and demonstrates a data model and schema for computer-aided systems engineering software, RDD-100, for use in the development and management of SEMP. These are being applied to the systems engineering technology development task for the next-generation high-speed railway systems in progress.

• Journal of Convergence for Information Technology
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• v.8 no.2
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• pp.11-18
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• 2018

The purpose of this study was to analyze the effects of Socio-demographic Characteristics, perceived stress and depression of college students in Daegu and Kyungbuk provinces on problem drinking behavior. The subjects of the study were 295 college students who understood and agreed on the purpose of this study and conducted questionnaires using structured questionnaires. Data were analyzed with frequency, percentage, mean, standard deviation, t-test, ANOVA, Scheffe test, pearson correlation coefficient, and multiple regression analysis. The results showed that depression was the most influential factor in the problem drinking behavior of college students in Daegu and Kyungbuk provinces, followed by gender, academic performance, and residental type. Therefore, it is necessary to develop an intervention program that takes into account the social psychological approach to prevent depression of college students and the characteristics of gender, academic performance, and residental type in order to prevent problem drinking of college students.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.18 no.10
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• pp.83-92
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• 2019

A pump is considered to be submersible when a motor and a pump are integrated and operate while submerged in water. Submersible pumps mainly function as rejection pumps to prevent foods in densely populated areas, as cold water circulation pumps in large power plants, as pumps to supply irrigation water, as drainage pumps to prevent flooding of agricultural lands, as water supply intake pumps, and as inflow pumps for sewage treatment. The flow in such turbomachines (submersible pumps) inevitably involves various eddy currents. Since it is almost impossible to accurately grasp the complex three-dimensional flow structure and characteristics of a rotating turbomachine through actual testing, three-dimensional numerical analysis using computational fluid dynamics techniques measuring the flow field, velocity, and the pressure can be accurately predicted. In this study, the shape of the impeller was developed to reduce vibration and noise. This was done by increasing the efficiency of the existing submersible pump and reducing turbulence. In order to evaluate the pump's efficiency and turbulence reduction, we tried to analyze the flow using ANSYS Fluent V15.0, a commercial finite element analysis program. The results show that the efficiency of the pump was improved by 4.24% and the Reynolds number was reduced by 15.6%. The performance of a developed pump with reduced turbulence, vibration, and noise was confirmed.

• Korean Journal of Remote Sensing
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• v.34 no.6_1
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• pp.1033-1039
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• 2018

In Korea, every year during the summer season, typhoons and torrential rains cause floods and damage to property. In particular, the Imjin River basin is characterized by steep slopes, narrow upstream areas, and low flat downstream areas, which are vulnerable to floods. In addition, damages occurred due to unauthorized discharge in the Hwanggang Dam, a large dam upstream of the Imjin River in North Korea. In order to prevent such flood damage, Korea is constructing the Gunnam Flood Control Site in 2010 to prevent flood damage. However, even after the construction of the flood control zone, the flood control capacity is only 20% of the maximum water level of the Hwanggang dam. This study used LAHARZ_py program to calculate flood damage area in the northern part of Gyeonggi province. As a result, when the discharge of Hwanggang dam exceeding the flood control ability of Gunnam flood control zone occurs, damage to Yeoncheon-gun and Paju-si of Gyeonggi-do was expected. This study will be useful as a material to prepare for flood damage.

• Journal of Digital Convergence
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• v.17 no.8
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• pp.237-248
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• 2019

The purpose of this study was to investigate the effects of clinical nurses' job stress, work-family conflicts, and burnout on their depression. Data was analyzed using descriptive statistics, t-test, one way ANOVA, Pearson's Correlation Coefficient and Stepwise multiple regression analysis. The results of this study shows that the job stress of the nurses was higher than average, the work-family conflicts was moderate, burnout was less than moderate, and depression was mild. The higher the job stress, the higher the conflict between workplace and family, the higher the burnout, and the higher the depression was. The main factor impacting upon the mental health of nurses was work-family conflicts followed by burnout. Therefore, it is necessary to develop a program that can prevent job stress and resolve burnout and support work-family conflicts to prevent depression of clinical nurses and to improve quality of life.

• Journal of Korean Biological Nursing Science
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• v.23 no.2
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• pp.100-109
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• 2021

Purpose: This study aimed to compare the differences in the prevalence of metabolic syndrome between menopausal women and women of childbearing age and to determine the risk of metabolic syndrome among women in each group depending on whether they eat alone. Methods: Data of 1,813 women from the seventh Korea National Health and Nutrition Examination Survey (2016) were used. The collected data were analyzed using SPSS 20.0, and complex sample frequency analysis, descriptive statistics, complex sample cross analysis, complex sample general linear regression, and complex sample logistic regression analysis were performed. Results: According to the results of the study, there was no difference in the prevalence and risk of metabolic syndrome according to the presence of companions during meals between women of childbearing age and post-menopausal women, but there was a difference in health behavior. In other words, women of childbearing age who ate alone had a lot of experience of drinking, and menopausal women who ate alone did not tend to make any efforts to control their weight and did not perform aerobic exercise. In particular, the negative health behavior of menopausal women who ate alone increased the risk of prevalence of metabolic syndrome. Conclusion: The findings indicate that, for women who eat alone, interventions to prevent metabolic syndrome should be differentiated before and after menopause. Therefore, it is suggested to offer an educational program to prevent metabolic syndrome in women of childbearing age as well as provide regular assessments to diagnose metabolic syndrome and health behavior improvement programs for menopausal women.