• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.11a
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• pp.121-122
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• 2007

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.703-704
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• 2013

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.1541-1542
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• 2013

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.06a
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• pp.407-408
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• 2008

• Journal of the Korean Statistical Society
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• v.30 no.4
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• pp.573-583
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• 2001

A condition in which the covariances of Matheron's variogram estimators are expressed in a simple form is reviewed. An asymptotic property of the covariances of the variogram estimators is examined, and a sufficient condition that guaranties the finiteness of the asymptotic variance of the normalized variogram estimators is provided.

• Journal of Korean Clinical Nursing Research
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• v.20 no.2
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• pp.200-210
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• 2014

Purpose: The main purpose of this study was to effect oral care methods between essential oil gargling and purified water gargling for postoperative patients who had general surgery or orthopedic surgery. Methods: The postoperative patients were assigned to one of two groups. One group gargled with essential oil and the other with purified water. All group gargled three times interval 2 hours. Each patients thirst, oral condition and halitosis were assessed four times. Results: After oral care was provided once, there were significant differences in thirst level between two groups. when oral care was provided once and three times, there were significant differences in oral condition between two groups. but there were no significant differences in halitosis between two groups. Conclusion: The results show that essential oil gargling is a more effective intervention than purified water gargling for post operative patients oral care in reducing the thirst level and improving the condition of the oral cavity.

• Journal of Families and Better Life
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• v.28 no.1
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• pp.87-98
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• 2010

The purpose of the present study was to examine the desire of married women to be re-employed and the factors related to this desire. The study gathered information from 240 women who gave up their jobs and careers after marriage. Information included their career history, current psycho-social condition, and family situation. Multiple regression and covariation structure analyses indicated that the desire of married women to go back to paid work was influenced by family economic condition, psycho-social condition, and child care situation. Specifically, the study found that family's monthly income and the age of the last child were negatively related to the women's desire for re-employment. On the other hand, economic pressure and achievement motivation were positively related to the women's desire. Finally, the study found that socio-economic background and external social support were not significantly related to the women’s wish to go back to the workforce.

• The Journal of Korean Medicine
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• v.25 no.3
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• pp.99-104
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• 2004

Objectives : To study the Live Blood Condition of chronic shoulder measurement. Methods : Twenty-one patients were studied. The observation items of the Live Blood Condition are the form's abnormality and cohesion of red blood cells, the abnormality of hemoglobin and the toxicity in plasma. Results : 1. The form's abnormality and cohesion of red blood cells observed were erythrocyte aggregation (8 persons), Rouleau (3 persons), target cells (7 persons), ovalocytes (3 persons), poikilocytes (2 persons). Double conditions observed were erythrocyte aggregation & target cells (3 persons), erythrocyte aggregation & poikilocytes (1 person), target cells & ovalocytes (l person). 2. The abnormality of hemoglobin and the toxicity in plasma observed were cholesterol crystals (5 persons), atherosclerotic plaque (3 persons), chylous (6 persons). 3. The form normality of red blood was generally observed in one woman. The normality of hemoglobin and the non-toxicity in plasma were generally observed in seven women. Conclusions : According to this study of the Live Blood Condition of women's shoulder measurement, these results suggest that the twenty-one patients evidence the conditions of extravasated blood and phlegm.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.19 no.2
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• pp.170-178
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• 2007

Most of parabolic approximation models employ a relatively limited open boundary condition in which there is no depth variation in the longshore direction outside of the computation domain so that Snell's law may be presumed to hold. Existing Kirby's condition belongs to this category and in the paper both modified Kirby's method and Dirichlet boundary condition are presented in detail and numerical results of three methods were shown. Judging from computation to wave propagations over a circular shoal in a constant depth, the method based on present Dirichlet boundary condition with fictitious numerical adjusting regions in both sides of the computation domain gives the least distorted amplitude ratio distribution.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.19 no.12
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• pp.1252-1259
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• 2009

Due to the international competition and global pressure, the roll speed is increased. However, higher speeds increase the power density in the process as well as the plant's potential to react with vibrations. Under certain operating conditions, vibrations may occur, which again cause chattermarks, strip rupture or coil break fault. The appropriate condition monitoring is needed to improve product quality and availability. The aim of condition monitoring is to reduce maintenance costs, increase productivity and improve product quality. This paper proposes a condition monitoring tool designed for the classification of coil break fault. This method is used to cold rolling mill for faults monitoring based on vibration and motor current signals. The results show that the performance of classification has high accuracy based on experimental work.