• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.7 no.1
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• pp.26-35
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• 2014

This research aims to identify relationships between stress level of parents in single parent families and life satisfaction in accordance with methods of getting rid of stress. Subject of the research were 260 parents in single parent families, centering on small towns in midsection sphere based on answers to questionnaire executed from March 1, 2013 to July 31, 2013. Collected data were analyzed by executing frequency analysis, factor analysis, t-test, one-way ANOVA, correlation analysis, regression analysis, etc. and an empirical verification was performed at 5% of significance level. From the result of the research, stress level appeared according to factors in a sequence of economic power, physical strength, social relation, family, mentality, etc. and significant influence to life satisfaction was found depending on factors such as stress removing methods and controlling effect. And minor factors were shown in a sequence of finance, emotion and acknowledgement. Suggestive points of the research are thought to be significance of stress removing method to the enhancement of life satisfaction, which will be a good material for the establishment of fundamental supporting plans and development of programs for single parent families.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2007.05a
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• pp.250-253
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• 2007

It is known that fine straightness of micro-wire can be obtained by removing residual stress induced during the manufacturing processes. Generally, residual stress is removed or minimized through several drawing processes with heat treatment. In this study, the residual stress at each straightening process is calculated and monitored by finite element analyses and the main reason of stress change is investigated.

• Journal of Oriental Neuropsychiatry
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• v.8 no.1
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• pp.111-125
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• 1997

This study was done in order to investigate Oriental Medicine's meaning on stress, the stress is due to animal experiments.Methods:This research was done by animal experiments's results based on 41 animal experiment treatises carried out by 24 prescriptions about stress control. Each experiments were compared with same conditions, minimizing the experiments differences. The results were analyzed by p-value and Increas e·Decrease percentage of experiments result's numerical value. Results:1. Inquire into frequency in use of each stress stimulus and measuring items, the restriction stimulus stress and measuring the content of catecholamines are numerous.2. Significance of stress stimuluses based on experments's results is good by restriction stimulus.3. Oriental Medicine's meaning for stress is pathological phenomenon of Seven Emotion(七情). Stagnant the Energy(氣鬱), the Fire(火), Dam(痰), Lack of the general Blood thing(血虛), and reaction of an individual body.4. Inguire into the effects of frequency in use of experiments's Herb drugs, Herb Drugs of Tonifing the general Blood thing depend on stabilized Mind(補血安神), Circulated the Energy and Digest(理氣消導), Tonifing the general Blood thing(補血), Clearing the Mind(淸心), Removing the Dam(祛痰) are numerous.5. From a Sasang Medical point of view, experimental use of Herb Drugs are Soeum-in(少陰人) Herb Drugs are numerous.According to above results, it is considered that Herb Drugs of Tonifing the general Blood thing depend on stabilized Mind(補血安神), Circulated the Energy and Digest(理氣消導), Tonifing the general Blood thing(補血), Clearing the Mind(淸心), Removing the Dam(祛淡), and Soeum-in(少陰人) Herb Drugs are used to prevent stress and related diseases.

• Journal of the Korean Institute of Landscape Architecture
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• v.32 no.3
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• pp.43-50
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• 2004

This study looked into the water quality improvement effect of reed (Phragmites communis), bur reed (Sparaganium stoloniferum), Alisma canaliculatum, and Hydrocharis dubia in order to develop native hydrophytes suitable to natural-type wetlands for ecological restoration. The result confirms that the concentration of wastewater was lowered in most plants indicating a possibility in wastewater treatment. Among four species, reed (Phragmites communis) and bur reed (Sparaganium stoloniferum) were most effective in removing a majority of contaminants. Considering that reed (Phragmites communis) is a species that has been used most often among hydrophytes, bur reed (Sparaganium stoloniferum), which is a native species in Korea, showed equivalent level of outstanding effect. In the physiological and growing activity and its relations to water quality improvement effect, each species appeared differently. Reed (Phragmites communis) and bur reed (Sparaganium stoloniferum) were best also in physiological and growing activity. In the case of Hydrocharis dubia, growth was strong in polluted water environment but its physiological activity was poor, indicating that it was under stress. The growth and physiological activity of Alisma canaliculatum were also poor, indicating that it too is being stressed. However, measuring organic contents in the plants of each species shows that the organic contents of Alisma canaliculatum was high. Alisma canaliculatum is a species effective in removing pollutants in water, although it is under stress. A unique phenomenon in removing water pollution with plants is that each species removed different pollutants. In the case of Alisma canaliculatum, which was relatively poor in removing pollution, it was remarkable in reducing nitrogen and phosphorus. Hydrocharis dubia was also effective in eliminating floating matter.

• Korean Journal of Health Education and Promotion
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• v.19 no.1
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• pp.199-212
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• 2002

Stress not only brings disorders in social, family life but brings also changes in eating behaviors so that the imbalance of food intake is induced. Our study was carried out to find out the association between the degree of stress and eating behaviors for the subjects of 262 female college students in the Suwon area. The study instrument was a structured questionnaire composed with questions about demographic data, food preferences, questions related to life styles, and health. All of the collected data was analyzed by the degree of stress score, grouping into high(25〈) and low stress group(〈=25). High stress group showed unhealthy lifestyles, higher percentage of irregular menstruation, smoking, dizziness, higher amount of alcohol consumption. They also showed higher preference rate of spicy foods including hot foods, oil based foods and showed percentage of removing visible fat when eating meats. They more wanted to control weight and prefers snacking compared to low stress group. These results show that stress changes in eating behaviors in a way of unhealthy life styles.

• Culinary science and hospitality research
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• v.11 no.4 s.27
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• pp.150-163
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• 2005

If a licensed cook of a special-deluxe hotel restaurant and n family restaurant receives stress psychologically and physically, it will influence the interaction with customers who eat their food. Job stress is known to affect the kitchen operation and cause negative formation of interior and exterior customer management. This study wishes to present the method that can minimize the negative effect caused by stress, leading to an elevation of service quality that is offered to customers by removing those factors related to the stress of a licensed cook. This study established the range of targets to compare the cooks of super-deluxe hotel restaurants and those of family restaurants and to apply result of this research to whole licensed cooks is considered to have some limitations. Therefore, estimating job stress and turnover intention of general licensed cooks through comparison with tourist hotels and general restaurants should be significant hereafter.

• Journal of the Korean Society of Safety
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• v.19 no.4 s.68
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• pp.20-24
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• 2004

Antifatigue failure technology take an important the part of current industries. Currently, the shot peening is used for removing the defect from the surface of steel and improving the fatigue strength on surface. Therefore in this paper the effect of compressive residual stress by shot peening on fatigue crack growth characteristics in stress ratio(R=0.1, 0.3, 0.6)was investigated with considering fracture mechanics. There is difference between shot peening specimen and unpeening specimen. Fatigue crack growth rate of shot peening specimen was lower than that of unpeening specimen. Fatigue lift shows more improvement in the shot peening material than in the unpeening material. And compressive residual stress of surface on the shot peening processed operate resistance force of fatigue crack propagation. That is the constrained force about plasticity deformation was strengthened by resultant stress, which resulted from plasticity deformation and compressive residual stress in the process of fatigue crack propagation.

• Transactions of Materials Processing
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• v.16 no.6
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• pp.463-466
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• 2007

Micro-wire made from straightening process invents high added value and it has been adopted many industrial fields. Therefore, many research activities about straightening process are advanced actively. It is known that fine straightness of micro-wire can be obtained by removing residual stress induced during the manufacturing processes. Generally, residual stress is removed or minimized through several drawing processes with heat treatment. In this study, the residual stress at each straightening process is calculated and monitored by finite element analyses and the main reason of stress change is investigated.

• Journal of The Korean Society of Agricultural Engineers
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• v.51 no.6
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• pp.83-90
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• 2009

This study was carried out to evaluate the vertical stress properties in sandy soil according to changes of loading type in soil bin compacted three layers. The following conclusions and comparisons have been made based on careful analysis from theoretical and experimental methods. : When sandy soil subjected to cycle-loading, compression of foundation and diffusion of vertical stress increment(${\Delta}{\sigma}_2$) were influenced by magnitude of loading plate. When sandy soil subjected to reloading after removing of pre-loading, the distribution of ${\Delta}{\sigma}_2$ depth at one time of loading plate width was different from its distribution at more deep point cause of load hysteresis, so in case of design of structure, the effect of ${\Delta}{\sigma}_2$ as depth must be considered. The increment of vertical stress will be different as loading condition and foundation depth, the loading condition must be considered in case of structure design.

• Journal of the Korean Society of Safety
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• v.24 no.6
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• pp.86-92
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• 2009

In the safety check of gravity dams at earthquake, there have been two types of analysis conducted simultaneously; one is stability analysis and the other stress analysis. But those are essentially the same calculation other than the former considers the dams rigid, while the latter considers the dams' dynamic characteristics which results in the amplification of response acceleration on the upper part of dam body. In this paper, the identity of those two methods is verified by example calculation in terms of stability check of gravity dam. It can be concluded that if stress analysis were performed, stability check of gravity dam could be accomplished with the results from stress analysis, removing unnecessary present dual calculation practice.