• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.42 no.4
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• pp.317-325
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• 2014

For a missile with a strapdown seeker, line-of-sight rate for guidance is obtained by compensating the look angle rate from the strapdown seeker by the body angular rate from rate gyros. However, the body angular rate from rate gyros has different signal properties when it compared to the body angular rate implicitly included in the look angle rate. Typically this discrepancy causes instability of homing loop. In this paper, we propose a design method of homing loop where seeker delay is compulsively placed in the output signal of the rate gyros for accordance of both body rates. Also, PID control loop is considered for obtaining stabilized guidance command even though uncertainties of seeker delay is associated. The stability analysis for the linear homing loop before and after the compensation has been done. The stability and performance of the designed terminal homing loop is verified through full nonlinear 6-DOF simulations.

• Journal of the Korean Institute of Intelligent Systems
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• v.21 no.6
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• pp.755-760
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• 2011

This paper presents a method for improving the positioning accuracy of the laser navigation. As a wireless navigation system, the laser navigation which is more flexible than a wired guidance system is used for the localization and control of an AGV(automatic guided vehicle). However, the laser navigation causes the large positioning error while the AGV turns or moves fast. To solve the problem, we propose the method for improving the positioning accuracy of the laser navigation using particle filter which has robust and reliable performance in non-linear/non-gaussian systems. For the experiment, we use the actual fork-type AGV. The AGV has a gyro, two encoders and a laser navigation. To verify the performance, the proposed method is compared with the laser navigation which is a product. In the experimental result, we verified that the proposed method could improve the positioning accuracy by approximately 66.5%.

• Journal of Korean Academy of Nursing
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• v.50 no.4
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• pp.523-532
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• 2020

Purpose: The purpose of the study was to compare the effectiveness of multi interventional package (MIP) and lifestyle interventions (LI) on physiological parameters of women with metabolic syndrome, to compare the effectiveness of MIP and LI on biochemical parameters of women with metabolic syndrome and to compare the effectiveness of MIP and LI on socio-psychological parameters of women with metabolic syndrome. Methods: A quasi experimental nonequivalent control group design with two experimental groups and one control group was used to collect data from 60 self-help group women. Samples were selected by multistage sampling. Reflexology foot massage, dietary modification, moderate intensity exercise and structured education were given to MIP group and dietary modification, moderate intensity exercise and structured education were given to LI group for 12 weeks. Control group received routine care. Demographic and clinical data sheets were used to collect basic information. Knowledge was assessed by a knowledge questionnaire. Physiological (weight, body mass index, waist circumference and blood pressure) and biochemical parameters (HDL, triglycerides and FBS) were assessed before and after the intervention. Results: The study found significant change in the physiological and biochemical parameters of metabolic syndrome as well as knowledge among the MIP group and LI group compared to the control group (p <.001). Conclusion: MIP and LI are effective in controlling the parameters of metabolic syndrome. Hence the guidance may be provided to women with metabolic syndrome for adopting necessary lifestyle changes as well as reflexology foot massage to control the physiological and biochemical parameters of metabolic syndrome.

• Journal of the Korean Home Economics Association
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• v.39 no.1
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• pp.205-219
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• 2001

The purpose of this study was examine what extent fathers and mothers direr in their parental satisfaction and child-rearing practices, to identify the variables which were related to the parental satisfaction and child-rearing practices, and to investigate the relationships between parental satisfaction and child-rearing practices. The subjects for this study consisted of 245 fathers and 245 mothers of kindergarten children. Descriptive analysis, Cronbach's $\alpha$, t-tests, and correlations were used for data description and analysis. Results were as follows: $\circled{1}$ Paternal child-rearing practices were somewhat differed from maternal child-rearing practices, but parental satisfaction was not differed between fathers and mothers. $\circled{2}$ Factors contributed to patern satisfaction and child-rearing practices were somewhat differed from maternal satisfaction and child-rearing practices. $\circled{3}$ For both fathers and mothers, higher parental satisfaction was positively related to more reasoning guidance, affection, goal-oriented attitude, parental involvement, consistent nile-enforcement, and less authoritarian control.

• The Korean Journal of Community Living Science
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• v.28 no.3
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• pp.461-479
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• 2017

This study was to investigate the appearance orientation and body shape management of adolescents in Daejeon. A survey was performed from December 16th~28th 2015 and 355 respondents were collected for analysis. 45.9% of the subjects were middle school students, whereas 54.1% of them were high school ones. The female and high school students tended to show higher ratings in lookism tendency and interests in beauty care, whereas male and middle school students tended to show higher ratings in physical satisfaction than the others. More than 40% of the respondents perceived them fatter than the standard weight, in particular, girls and the ones with opposite-sex friend perceived them fatter than their actual conditions. On body shape satisfaction, female and high school students indicated lower satisfaction. For body shape management, 75% of the female and 40% of the male students had tried weight control. The frequency and the duration time of exercise had higher for boys than girls, and the ones with opposite-sex friend than without. For methods of weight control, girls were more likely to do diet control, whereas boys were more committed to exercise. In general, students with high appearance orientation tended to control taking snacks and fast food or did diet control for body shape management. Conclusively, continued interest and guidance, not only at home but also in school, is required for students so that they can do proper body shape management to fulfill their appearance orientation and they will improve academic performance by gaining confidence through their appearance satisfaction.

• Journal of Korean Clinical Nursing Research
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• v.24 no.1
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• pp.56-66
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• 2018

Purpose: This quasi-experimental study was done to develop image-use medication education for older inpatients and to evaluate the effects on their knowledge, self-efficacy, and misuse of medication. Methods: Fifty nine elders (experimental group - 30, and control group - 29) received medication education once a week for 3 weeks. Data were collected before (pretest), right after (post 1), and 4 weeks after the program finished (post 2). Drug Use Knowledge Scale, Self-efficacy for Appropriate Medication Use Scale, and Drug Misuse Scale were used. Analysis included descriptive statistics, $x^2$ test, repeated measured ANOVA. Results: Findings showed significant differences in knowledge of medication and drug misuse between groups according to time(pretest, post 1, and post 2). At post 1 and post 2, knowledge and self-efficacy levels were significantly higher and misuse scores were lower in the experimental group compared to the control group. Conclusion: Findings indicate that elder-tailored medication education consisting of group education and individual guidance with images is effective and practical for medicine safety in elderly inpatients. Moreover, it could lead to a healthier life for elders, even elders with multiple chronic diseases and taking several medications.

• Nutrition Research and Practice
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• v.1 no.3
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• pp.237-242
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• 2007

The purpose of this study was to compare food intakes between Korean breast cancer patients and a healthy control group. We compared the intake of nutrients of 117 food items between Korean breast cancer patients (n=97) and age matched healthy controls (n=97). Nutrient intake was estimated using a quantitative food frequency questionnaire. The mean caloric intake of breast cancer patients and healthy controls was not significantly different. Breast cancer patients consumed significantly less fat and antioxidant nutrients such as vitamin A, retinol, ${\beta}-carotene$, vitamin C and vitamin E when compared to the control subjects. Among the food items, the intake of eggs (p<0.01), legumes (p<0.05), vegetables (p<0.05), seasonings (p<0.001), and oils and fats (p<0.01) in breast cancer patients was significantly lower than that in the controls. These results suggest that Korean breast cancer patients consumed less amount of soy and vegetables, which are rich source of antioxidant nutrients and phytosterols. Thus, dietary guidance to increase intake of these foods may be beneficial in the prevention of breast cancer.

• International Journal of Advanced Culture Technology
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• v.11 no.1
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• pp.389-394
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• 2023

Based on intelligent visual information and 5G, this paper studies the intelligent visual communication of landscape bamboo buildings, and provides a new method of intelligent perception and interactive computing for the real world, which can represent, model, Perception and cognition; through the integration of virtual and real, the situational understanding of the human-machine-material fusion environment and the interaction with nature. The 5G network can well meet the combination of high-bandwidth uplink transmission and low-latency downlink control. At the same time, 5G-based AR intelligent inspection, remote operation and maintenance guidance, and machine vision inspection. Taking the bamboo building as an example, through field inspections to analyze tourism Bamboo buildings before and after development, and the intelligentization of bamboo buildings based on 5G and visual modeling.

• Physical Therapy Rehabilitation Science
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• v.10 no.4
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• pp.414-420
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• 2021

Objective: The purpose of this study was to investigate the effects of coordinative locomotor training(CLT) using elastic bands on dynamic balance and grip strength for Elementary school baseball players and to provide correct posture guidance and reference on the prevention and rehabilitation program of sports damage and injury in the future. Design: Two groups pre-post randomized controlled design. Methods: Forty-six subjects were randomly divided in two groups;1) CLT using Elastic Band group(Experimental group, n=23), 2) Routine baseball training group(Control group, n=23). The intervention was conducted total 16 times for sixty minutes a day, 2 times a week, for 8 weeks. Evaluations of dynamic balance ability and grip strength were performed with all subjects before the commencement of training and 8 weeks after training. Results: Compared to the control group after training, the dynamic balance ability and dominant handgrip strength of the experimental group were significantly more improved(p<0.05). Conclusions: We confirmed that the effects of CLT using elastic bands on dynamic balance ability and grip strength in Elementary school baseball player. This study should be used for improving the quality of the Elementary school baseball player's training and would be contributed prevention and rehabilitation program of sports damage and injury.

• 유공압시스템학회:학술대회논문집
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• 2010.06a
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• pp.126-131
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• 2010

In order to improve the life and reliability of fluid components used in the Automotive, Hydraulics and Aerospace industries, the cleanliness of the system parts and components before their assembly into the system is being addressed. The measurement of components and parts cleanliness is related to contaminant collection, analysis and data reporting and ISO Standard are continually being developed to control procedures. This Paper explains the processes in these standards and explains how similar procedures have been adapted to suit the requirements of the respective Industry. It also gives guidance and recommendations on the implementation of these standards, so that best use can be made of them.