• Journal of The Korean Society of Integrative Medicine
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• v.11 no.4
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• pp.247-258
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• 2023

Purpose : This study aims to evaluate the effectiveness of a sea breeze walking program by analyzing the metabolic disease-related, immune-inflammation-related, and respiratory health-related variables of the test subjects associated with improved respiratory health. Methods : In the experiment, 30 patients with metabolic diseases were divided into an experimental group (n=15) and a control group (n=15). The experimental group walked on the Namparang-gil, Geoje trail, while the control group walked on the Hoeya-cheon, Yangsan trail. Both groups participated in the same walking program for two hours, twice a week for four weeks. Thereafter, the metabolic disease-related, immune inflammation-related, and respiratory health-related variables were measured and compared between the two groups. Results : After the four-week sea breeze walking program, in terms of changes in the metabolic disease-related variable, a statistically significant interactive effect was found in waist circumference (p<.001). The experimental group showed a significant decrease in waist circumference after the program. After the four-week sea breeze walking program, the control group showed a statistically higher increase in lactic acid (p.<05), whereas the experimental group exhibited a decrease in lactic acid. For the respiratory health-related variables, no statistically significant differences were found after the sea breeze walking program. However, the experimental group showed an increase in FEV1,while the control group showed a decrease in FEV1. For the maximum oxygen intake, no statistically significant interactive differences were found but there was a statistically significant effect in time (p<.05). The two groups exhibited an increase in maximum oxygen intake. Conclusion : After the sea breeze walking program, positive physical changes were observed in the metabolic disease-related and immune inflammation-related variables.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.7 no.5
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• pp.1058-1076
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• 2013

The WBAN(Wireless Body Area Network) supplies mobile convenience to our medical services. But if we have few effective control variables across this service deployment, the hidden distortions or defects of the system might threaten the lives and rights of the stakeholders. Therefore we need to increase the service credibility, to get WBAN effective. This study proposes a governance mechanism using feasible variables that are currently in use in practices in WBAN environments against medical incidents. Control variables were tested in Seoul National University hospital and related medical industries of South Korea. We assume that WBAN systems would be open based on integrating patients, medical employees and law enforcements to get smart theater operations against medical incidents by implementing proposed MJA(Multilateral Joint Analysis) model. MJA model also contributes to the convergence of computer systems and medical services by demonstrating flexible SOA(Service Oriented Architecture) dashboard of healthcare services with credibility factors in medicine. The important components in MJA model across WBAN, were found to be "Safety, Accuracy and Reliability" in priority order. Factor analysis, correlations and ANOVA were used to evaluate this model and an IT dashboard with a realization of mobile application, was used to support participants' decision-making.

• Journal of the Korean Home Economics Association
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• v.44 no.3 s.217
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• pp.13-25
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• 2006

In the information age, the spread of internet has a lot of positive aspects. However, it also has very serious problems with adverse effects on immature teenagers both physically and mentally. Among them, internet addiction has recently grown into a social problem. The purpose of this study is to examine the relationship between the degree of internet addiction of teenagers and the related variables, such as individual variables, using internet variable, parent-child relationship variable, and psychological variable. The survey subjects were 452 high school students in the Gimhae area. The results were as follows: First, the average score of internet addiction among the teenagers of this study was 48.24 out of 100. Which according to Young's classification, corresponds to an early stage addiction. Second, there was a significant difference in the degree of internet addiction by students' school record. The low-graded group was highly addicted to the internet. Third, the longer the teenagers were exposed to the internet, the higher they were addicted. Fourth, the degree of internet addiction was influenced by parent-child relationship. There was low addiction in a group with their parents' high support. Fifth, the degree of internet addiction was differed by psychological variables, such as self-control, self-esteem and depression. Low self-control, low self-esteem and highly depressed teenagers were related to a higher degree of internet addiction.

• Journal of the Korean Home Economics Association
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• v.29 no.2
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• pp.217-240
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• 1991

The primary purpose of this study is to construct a path model in which shows how the background variables, retirement-related variables, and perceptions of stress in retirement influence life satisfaction among retirees. Data from a probability sample of retirees who are not employed as a full - time (n of retirees=261)are used. The social stress model, developed by House (1974) and George (1980), presented and tested in this research focuses on the perspective of the retirees. The major findings are: 1. The retirees perceive relatively high levels of stress in retirement. 2. Levels of living standard, health status, and locus of control are significant factors in differentiating the degrees of perceived stress in retirement and life satisfaction. 3. Concerning the retirement variables, the previous job satisfaction, plans and preparatins for leisure activities and financial arrangement contribute to differentiate the degrees of perceived stress in retirement and life satisfaction. 4. While health status, locus of control, and the perceptions of stress in retirement influence directly on life satisfaction, age, education, income, and activity level influence indirectly through the retirement - related variables and the perceptions of stress in retirement on life satisfaction. The significant impact of the perceptions of stress in retirement upon life satisfaction receives strong support.

• Proceedings of the KIEE Conference
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• 1990.07a
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• pp.433-436
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• 1990

An optimal Stabilization technique for a bilinear in duction model is introduced. This technique includes to o parts; the one is an stabilization control using Lyap unov Function which has the form of a sum of linear and quadratic function of the state variables, and the other is an optimal control using the performance index which depends on the choice of the elements of the Ly apunov matrices concerning both the state variables and the input variables. Therefore, induction motor is drived with the shorter transient time of the state variables and with the smaller overshoot of the ones, simulation results are obtained from a digital computer. Experimental ones are obtained from implementation of the optimizing controller using 8086 microprocessor kits and analog circuits are compared.

• Research in Community and Public Health Nursing
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• v.20 no.1
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• pp.87-95
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• 2009

Purpose: The purpose of this study was to examine the effects of aquatic exercise on pain, fatigue, physical fitness, disability in ADL, and psychological variables in women with arthritis. Methods: With a quasi-experimental design, 46 women who has arthritis were assigned into an experimental group (n=23), or a control group (n=23). Data were analyzed with SPSS/WIN using descriptive statistics, t-test and ANCOVA. Results: The mean age of the subjects was 60.9 years in the experimental group and 59.8 years in the control group. The pretest scores of the outcome variables were similar between the two groups except fatigue and waist flexibility. After controlling fatigue and waist flexibility, the experimental group showed more improvement than the control group in Rt shoulder flexibility score (F=4.36, p=.04), sit-up score (F=32.34, p=.00), and muscle strength score (F=30.78, p=.00). The score of disability in ADL decreased in the experimental group (F=5.49, p=.02). The depression score decreased in the experimental group (F=12.01, p=.00), and self-efficacy was improved more than the other variables(F=8.88, p=.00). Conclusion: Aquatic exercise is likely to be an effective nursing intervention to improve physical fitness, to reduce pain, fatigue, and disability in ADL, and to enhance psychological functions in women with arthritis.

• Korean Journal of Agricultural Science
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• v.49 no.3
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• pp.521-529
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• 2022

This study evaluated the effects of agricultural reflective film and HANSPEK film on the fruit quality attributes and peel color variables of 'Fuji' apples. The reflective films were applied under the tree canopies at 20 and 30 days before harvest (DBH), and a tree with no films was used as the control. Depending on the measurement locations, the light intensity was 7.4 - 14.6% higher in the reflective film treatments than that of the control. However, no difference in the light intensity was observed between the reflective and HASPEK films. In addition, the light intensity was not also different between the 20 and 30 DBH. At harvest, the flesh firmness, fruit weight, soluble solids content, titratable acidity, and internal ethylene concentration were not different regardless of the type of reflective film and treatment time. In addition, the peel color variables were not affected in the equatorial region. However, in the calyx region, the L* and b* values were decreased, and the a* value was increased by the reflective and HANSPEK films compared with the control. Hence, the hue angle was decreased to near 0^o (red), and the peel color was improved. Therefore, this study suggests that the application of the HANSPEK film under a tree canopy could improve the fruit peel color of 'Fuji' apples.

• Journal of the Korean Home Economics Association
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• v.45 no.4
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• pp.113-122
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• 2007

The purpose of this study was to investigate weight control and the relative influence of individual variables affecting children's attempts to control weight. The study subjects were 319 elementary school children. First, the average body height and weight of the children who participated in this study was somewhat larger in boys and similar in girls, as compared with the normal body shape of Korean children. More boys were classified as overweight than girls, based on BMI. Both boys and girls were dissatisfied with their body shape, and especially the girls showed higher dissatisfaction rate than the boys did. Almost half of the children were concerned about weight control and girls had higher concern than boys. Of the children, 38.8% had controlled their weight; however there was no difference between their sexes. There were significant differences between children who had and had not experienced weight control in the following variables: stress caused by obesity, body satisfaction, BMI, subjective body shape perception and concern about weight control. Therefore, discriminant function analysis was performed to determine the discrimination of these variables between the two groups. From the analysis results, the most critical factor was BMI in the boys and concern about weight control in the girls. This finding should be reflected in the design of weight control programs for children i.e., boys should be encouraged to perceive correctly their own body shape and to control weight by maintaining a well-balanced diet and moderate exercise over a long period of time, rather than by skipping meals, while girls should be inspired with sound values and attitudes regarding their body shape, rather than provided with the concrete information on how to control weight.

• The Journal of the Convergence on Culture Technology
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• v.10 no.2
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• pp.531-536
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• 2024

Control drones, which are recently classified as smart agricultural machines in the agricultural field, are striving to build smart control and automatic control systems by combining hardware and software in order to shorten working hours and increase the effectiveness of control in the aging era of rural areas. In this paper, the characteristics of the nozzle dedicated to the control drone were analyzed as a basic study for the establishment of management control and automatic control systems. In order to consider various variables such as the type of various drone models, controller, wind, flight speed, flight altitude, weather conditions, and UAV pesticide types, related studies are needed to be able to present the drug spraying criteria in consideration of the characteristics and versatility of the nozzle. Therefore, to enable the consideration of various variables, flow analysis (CFD) simulation was conducted based on the self-designed nozzle, and the theoretical and experimental values of the droplet distribution were compared and analyzed through water reduction experiments. In the future, we intend to calculate accurate scattering in consideration of various variables according to drone operation and use it in management control and automatic control systems.

• Journal of Korean Academy of Nursing
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• v.35 no.8
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• pp.1485-1492
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• 2005

Purpose. The present study aims to verify the effectiveness of the reality therapy for patients with schizophrenia. Methods. It is designed as a quasi-experimental study by which a nonequivalent control group pretest-posttest is conducted. The test was conducted with 30 patients with schizophrenia who were hospitalized at a mental hospital in South Korea. Fifteen of the patients participated in the reality therapy program while another 15 in the control group. The effects are measured by marking scores in the areas of the locus of control, self-esteem, and problem-focused stress coping of each participant. Results. The general characteristics and dependent variables related to outcome variables were controlled to be equal between the two groups. It turns out that the internal locus of control, self-esteem, and problem-focused stress coping are statistically significant. Conclusion. Findings show that the reality therapy caused positive changes in terms of the internal locus of control, self-esteem, and problem-focused stress coping of the observed schizophrenic patients.