• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 한국윤활학회 2004년도 학술대회지
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• pp.316-322
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• 2004

Wear volume was used generally to analyze the moving state of lubricated machine. But It is difficult of getting the correct wear volume because wear volume of it is progressed always unstably with a large amplitude on working condition. If correct analysis of wear volume on working condition for lubricated machine can be possible, it can be effect on diagnosis of failure condition. The purpose of this study is carried out to analysis friction factors affecting on wear volume for prediction of failure condition of alloy steel for machine structural use by design of experiment. The results show that the most important friction factors affecting on wear volume was applied load, neat sliding distance, sliding speed and materials.

• The Korean Journal of Food And Nutrition
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• 제6권1호
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• pp.25-30
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• 1993

This study was done to investigate the correlation between food-life-attitude and anemia as well as obesity. 154 people living in Kimchun in the forties or fifties were selected for this study as subjects from January to February, 1991. The data analysis was made by way of frequency, percentage, X, SD and pearson correlation using SAS package of PC. The summarized results were as follows. The survey on food-life-attitude showed that 32.5% of the subjects had a good attitude. The average score of the subject's food-life-attitude was 31.3. 34.4% of the subjects were obesity. The significant items positively correlated to obesity were a regular breakfast, the settled amount of meal intake, concerns about food combination, an effort to correct an unbalanced diet, the presence of remained meal, an appetite, a diet considered to health, the use of instant foods and daily intakes of green-yellow vegetables, protein foods and seaweeds. 9.1% of the subjects were anemia. The significant items positively correlated to anemia were an effort to correct an unbalanced diet, a sweet meal, an appetite, attentions to food additives, a diet considered to health, the use of instant foods, daily intakes of green-yellow vegetables and seaweeds and a regular meal.

• Journal of The Korean Association For Science Education
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• 제14권3호
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• pp.293-303
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• 1994

The purpose of this study was to find the effect of molecular movement model based instruction on high school students' conceptions of diffusion and osmosis. The study was composed of two groups, the traditional instruction group in which the so-called traditional instruction was performed, and the other group in which interventions by researchers were made. The subjects of the traditional instruction group consisted of a total of 242 high school students from Seoul, Gwangju and Mokpo. The subjects of the model based instruction group consisted of 177 first-year high school students in Mokpo. The study was focused on the use of the term of 'molecular movement' in their explanation of diffusion and osmosis in the correct contexts. In general, students who got the molecular movement model based instruction showed more frequent use of the terms of 'molecular movement' in the correct contexts than the control group students did. It was found that misconceptions including teleological explanations changed into scientific explanations by the intervention. It seemed that the molecular movement model led students to make scientific explanations on natural phenomena. A further research is recommended to assess the improvement of teleological explanation and scientific attitude by the molecular movement model.

• Journal of Korea Multimedia Society
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• 제6권6호
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• pp.1000-1007
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• 2003

In this paper, we propose an efficient method for locating lip. The lip shape is represented as a set of points based on Point Distribution Model. We use the Isodata clustering algorithm to find clusters for all training data. For each cluster, a lip shape model is calculated using principle component analysis. For all training data, a lip boundary model is calculated based on the pixel values around the lip boundary. To decide whether a recognition result is correct, we use a cost function based on the lip boundary model. Because of using different models according to the lip shapes, our method can localize correctly the flu far from the mean shape. The experiments have been performed for many images, and show correct recognition rate of 92%.

• The Journal of Korean Academic Society of Nursing Education
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• 제13권1호
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• pp.41-51
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• 2007

Purpose: This research studied the nurses' knowledge and attitude about pain management. Method: The research subjects were 465 nurses working at three university hospitals in Seoul and at one university hospital in Kyunggi-do. The survey results were collected between October 13 and 21 in 2004. Result: The overall mean score of correct answers on knowledge about pain management was 73.34, general knowledge 71.08, and cancer pain control was 93.93. Similarly, the mean score of correct answers on knowledge about the classification of analgesics was 75.89, while the knowledge of their use was only 52.48. The overall characteristics related to the degree of the nurses' knowledge about pain management were their educational background and their experiences of pain education. In a similar view, the overall characteristics related to the knowledge about the classification of analgesics were age and religion. Likewise, the use of analgesics was related to field of service and the experience of pain education. Finally, the overall characteristics related to the nurse's attitude toward pain management were their field of service and their position. Conclusion: The results of this study could be useful to institutions involved in the education and application of patient pain management.

• Journal of Information Processing Systems
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• 제13권4호
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• pp.893-913
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• 2017

The handwriting based person identification systems use their designer's perceived structural properties of handwriting as features. In this paper, we present a system that uses those structural properties as features that graphologists and expert handwriting analyzers use for determining the writer's personality traits and for making other assessments. The advantage of these features is that their definition is based on sound historical knowledge (i.e., the knowledge discovered by graphologists, psychiatrists, forensic experts, and experts of other domains in analyzing the relationships between handwritten stroke characteristics and the phenomena that imbeds individuality in stroke). Hence, each stroke characteristic reflects a personality trait. We have measured the effectiveness of these features on a subset of handwritten Devnagari and Latin script datasets from the Center for Pattern Analysis and Recognition (CPAR-2012), which were written by 100 people where each person wrote three samples of the Devnagari and Latin text that we have designed for our experiments. The experiment yielded 100% correct identification on the training set. However, we observed an 88% and 89% correct identification rate when we experimented with 200 training samples and 100 test samples on handwritten Devnagari and Latin text. By introducing the majority voting based rejection criteria, the identification accuracy increased to 97% on both script sets.

• Herbal Formula Science
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• 제17권2호
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• pp.39-51
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• 2009

Objectives : In Korea the practice of folk remedies is widely spread. One of the main uses is the utilization of pumpkin in postpartum edema. While this practice is widely propagated no one could exactly define the evidence of its uses. Therefore we aimed to provide literature evidence of correct prescription in postpartum edema. Methods : As the use of pumpkin in postpartum edema is particular to korea, we revised all the medical book published from the 17th century, the time supposed to have been introduced pumpkin in Korean peninsula. We also researched the prescription mainly used in postpartum edema, and the common main herbal component, succium. As pumpkin and succium is homophony to 'Ho bak' in korean it had the possibility of being misinterpreted. Results : On our literature research we found the precautions of pumpkin to provoke gi-stagnatio and dampness obstruction and that it was restricted while the recovery of all kind of diseases as well as in puerperium. The main reason of postpartum edema is caused by blood stasis which when the blood gains its normal circulation, edema is dispersed by itself. For this propose main prescription was Jogyeongsan調經散 type with its main component succium which medical properties are cited in all medical classics consistently. From the literature of "Juchonsinbang" and "Uibanghapbu" we found three different prescriptions, Hobakgo琥珀膏, Hobakgo胡朴膏, and Namgwago南瓜膏 which contents and their medical proposes were equal. Conclusions : By these finding we could refer that the use of pumpkin in postpartum edema was caused by homophonic reasonal misinterpretation of succinum in korean. This research provides the literature evidence to correct pumpkin's misuse and also the necessity of restriction of the use of even most common products for medical proposes and/or at least the importance of being guided by the experts.

• Korean Journal of Community Nutrition
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• 제26권1호
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• pp.23-36
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• 2021

Objectives: This study sought to assess the prevalence and duration of weight-control or health functional food use, associated weight-control behavior, perception, and knowledge among university students. Methods: The subjects were 442 university students in Cheonju, Korea, and data was collected by a self-administered questionnaire. Both χ2 and t-tests were conducted for categorical and mean comparisons. Results: An estimated 62.7% (female 69.0%, male 54.8%) had ever attempted weight-control. Among these, an estimated 59.2% of females and 38.9% of males had used weight-control or health functional foods with significant gender difference. The weight-control foods commonly used included chicken breast, protein powder, low-fat milk and soymilk, and meal replacement drinks, while garcinia cambogia extract and green tea extract were frequently used as health functional foods. One of 10 (10.3%) consumers of weight-control foods reported ≥ 7 months use, with less frequent long-term consumption of health functional foods (4.2%). The average degree of satisfaction was 3.24 ± 0.92 for weight-control foods and 2.72 ± 0.97 for health functional foods on a 5-point scale, meaning 'slightly satisfied' and 'slightly dissatisfied', respectively. Females or students with an experience of weight-control reported poorer perceptions of their health and body image as well as a higher need for weight control. Besides, both male and female subjects felt a high need for correct information regarding weight-control methods. Conclusions: Our results provide a better understanding of the characteristics associated with the use of weight-control or health functional foods among university students and will be useful in developing a nutrition education program by incorporating correct body image, knowledge, and practical yet desirable practices for weight control.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.1782-1787
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• 2003

A face recognition is currently the field which many research have been processed actively. But many problems must be solved the previous problem. First, We must recognize the face of the object taking a location various lighting change and change of the camera into account. In this paper, we proposed that new method to find feature within fast and correct computation time after scanning PC camera and ID card picture. It converted RGB color space to YUV. A face skin color extracts which equalize a histogram of Y ingredient without the Luminance. After, the method use V' ingredient which transforms V ingredient of YUV and then find the face feature. The result of the experiment shows getting correct input face image from ID Card picture and camera.

• The Journal of Korean Association of Computer Education
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• 제6권3호
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• pp.47-56
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• 2003

We describe a new method for removing non-linear phased array antenna aberration called "squint" problem. To develop a compensation scheme. theoretical antenna and artificial neural networks were used. The purpose of using the artificial neural networks is to develop an antenna system model that represents the steering function of an actual array. The artificial neural networks are also used to implement an inverse model which when concatenated with the antenna or antenna model will correct the "squint" problem. Combining the actual steering function and the inverse model contained in the artificial neural network, alters the steering command to the antenna so that the antenna will point to the desired position instead of squinting. The use of an artificial neural network provides a method of producing a non-linear system that can correct antenna performance. This paper demonstrates the feasibility of generating an inverse steering algorithm with artificial neural networks.