• The Korean Journal of Community Living Science
• /
• v.15 no.4
• /
• pp.67-78
• /
• 2004

This study was designed to understand purchase motivation for clothing, evaluation criteria for clothing, evaluation criteria for stores depending on average monthly expense for clothing among female college students in Yanbian, China. Questionnaire was used for measurement tools to study the subject of the thesis. Each question was rated in 5 point scale, where 1 means 'not at all' and 5 means 'definitely'. The main study was conducted against 300 female college students from May 17 to June 5, 2001. The data for the study were analyzed using SAS PC program for frequency distribution, percentage, t -test. The purchase motivation for clothing, evaluation criteria for clothing, evaluation criteria for stores are affected by average monthly expense for clothing. The result was showed as follows : A significant difference was showed in the purchase motivation, evaluation criteria for clothing, evaluation criteria for stores, preferred stores between lower group and higher group depending on monthly expense on clothing. A meaningful difference was showed in 4 areas'to try a new trend, impulsive buying at the store display, for a change of mood, for stylish appearance'in the purchase motivations for clothing depending on the monthly expense for clothing, in 2 areas'brand, trendy fashion'in evaluation criteria for clothing depending on the monthly expense for clothing, in 3 areas 'after service, hospitality of sales person, brand awareness' in the evaluation criteria for stores depending on the monthly expense for clothing, And Respondents of a high expense group for clothing showed higher means compared to a low expense group for clothing in all areas. A significant difference was showed among groups regarding preferred stores based on the monthly expense on clothing.

• Journal of muscle and joint health
• /
• v.6 no.1
• /
• pp.51-72
• /
• 1999

The purpose of this study is to compar self-reported fatigue and fatigue-regulating behaviors of rheumatoid arthritic patients and normal persons. This study collected the data from 75 rheumatoid arthritic patents visited the departments of internal medicine or orthopedics of four general hospitals T-city and K-city by means of direct interview and questionnaires. in this study also collected data from 75 normal persons who had not been exposed to any other disease in T-city and K-city by means of direct interviews anti questionnaires which were conducted by two trained nurses. This experiment was conducted from August 1, 1998 to October 15, 1998. This study used both MAP(Multi-Dimentional Assessment of Fatigue) developed by Belza(1995) to measure fatigue and the measurement developed by Kwon, Young-Eun to investigate fatigue regulating behaviors. The collected materials were analyzed by means of descriptive statistics, t-test, and the ANCOVA according to the SPSS PC+ program. The findings are as follows : 1. There was the statistically significant difference(t =5.07, p=.000), between rheumatoid arthritic patients(32.76 points) and normal persons(25.81 points) in t-test comparison by group about fatigue. A fatigue degree of rheumatoid arthritic patient group was high in five kinds of lower realms such as common fatigue degree, fatigue severity to be experienced, distress due to fatigue, daily fatigue degree, and fatigue timing at the last week by dimension. 2. There was the significant difference in the number of fatigue-regulating behaviors between rheumatoid of fatigue arthritic patients(9.37 times) and normal persons (8.15 times), but there wasn't any significant difference in the efficiency between rheumatoid arthritic patients(2.85 points) and normal persons (2.78 points) This research suggests two kinds of things as follows : 1. It is necessary to develop an educational program for improving efficiency of fatigue-regulating behaviors as well as some nursing arbitration measures for reducing fatigue of rheumatoid arthritic patients. 2. It is necessary for the future studies to continuously grasp characteristics of fatigue by gender variable by selecting more rheumatoid arthritic male patients.

• Journal of Korean Academy of Fundamentals of Nursing
• /
• v.4 no.2
• /
• pp.301-318
• /
• 1997

This study was done to identify the professional autonomy of clinical nurses perceived by staff nurses and doctors. The subjects consisted of 410 nurses and 219 doctors who are working at 4 general hospital in Daegu and Pusan. The nurses were surveyed by means of July 7 to September 27, 1997. The results are as follows : 1. The score which the nurses perceived clinical nurses' professional autonomy is 159.05 points. This score means mid level of professinal autonomy. 2. The score which the doctors perceived clinical nurses' professional autonomy is 140.37 points. This score means mid level of professinal autonomy. 3. The extent of the perceived clinical nurses' professional autonomy between two groups was remarkably high in the nurses group(P=.000) 4. The relationship between general characteristics and the perception of professional autonomy by nurses showed a significant difference in regard to the age, the marital status, educatioal level, the period of nursing career and the state of position. The score of professional autonomy by age was highest 41 years old or more, while the lowest was for 26-30 years old(P=.008). The score of professional autonomy of a married nurse was higher than an unmarried(P=.003). The score of professional autonomy by the period of nursing career was highest 9 years or more, the lowest was for 3-6 years(P=.009), Also, the higher the educational level(P=.000) and the state of position(P=.049), the higher the score of professional autonomy. But there were no statistically significant difference in regard to the religion and the field of work. 5. The relationship between general characteristics and the perception of professional autonomy by doctors showed no statistically significant difference.

• Korean Journal of Remote Sensing
• /
• v.36 no.5_3
• /
• pp.1067-1076
• /
• 2020

In this paper, an unsupervised saliency guided change detection method using UAV and aerial imagery is proposed. Regions that are more different from other areas are salient, which make them more distinct. The existence of the substantial difference between two images makes saliency proper for guiding the change detection process. Change Vector Analysis (CVA), which has the capability of extracting of overall magnitude and direction of change from multi-spectral and temporal remote sensing data, is used for generating an initial difference image. Combined with an unsupervised CVA and the saliency, Principal Component Analysis(PCA), which is possible to implemented as the guide for change detection method, is proposed for UAV and aerial images. By implementing the saliency generation on the difference map extracted via the CVA, potentially changed areas obtained, and by thresholding the saliency map, most of the interest areas correctly extracted. Finally, the PCA method is implemented to extract features, and K-means clustering is applied to detect changed and unchanged map on the extracted areas. This proposed method is applied to the image sets over the flooded and typhoon-damaged area and is resulted in 95 percent better than the PCA approach compared with manually extracted ground truth for all the data sets. Finally, we compared our approach with the PCA K-means method to show the effectiveness of the method.

• The Korean Journal of Emergency Medical Services
• /
• v.10 no.3
• /
• pp.21-32
• /
• 2006

Purpose: This study was performed to examine the ethical values of EMT students. Method: The results below were based on the revised questionnaires, which can be applicable to EMT from the using questionnaires by Kim(2001), with a sample of 140 students consisting of 50 freshman, 40 sophomore and junior 50, conducted October 9-11, 2006. Data were analyzed using SPSS 13.0 in terms of means and standard deviation, $x^2$-test, one way ANOVA, multiple regression analysis. Results: The ethical value was deontological ethics and statistically significant difference between three groups(F=3.072, p<0.049). Means and standard deviation of freshman is $2.86{\pm}0.28$, sophomore is $2.75{\pm}0.25$, junior is $2.88{\pm}0.21$. In the area of Human life, subjects showed utilitarian disposition. But there were no statistically significant difference between three groups. In the area of patient relationship, all students of three groups took on deontological ethics, but there were no statistically significant difference. In the area of task relationship, all students of three groups took on deontological ethics, but there were no statistically significant difference. In the area of coworker relationship, all students of three groups took on deontological ethics, but there were no statistically significant difference. As a results of multiple regresstion analysis, the associated factors with ethical values were second students, participation of ethical education, a firm belief of ethical values. Conclusion: This results showed that education of ethical values must instruct to EMT students. More and more, It is necessary to make an further application tool of EMT.

• The korean journal of orthodontics
• /
• v.23 no.4 s.43
• /
• pp.455-474
• /
• 1993

Degenerative joint disease(DJD) has hun known as one of the diseases which affect the middleor old-aged people. But as orthodontists are getting interested in the adult orthodontics, it is not rare for them to meet the open-bite patients with the TMJ DJD in their clinics. The purpose of this article is to investigate the cephalometric characteristics of the open-bite cases with TMJ DJD. Twelve TMJ DJD patients($15.1\~39.5$ years old) were selected from the patients who visited Department of Orthodontics, Seoul National University Hospital. Cephalograms were taken and means from 60 measurements were compared by t-test with those of the fifty four healthy adults($20.0\~26.7$ years old) who have normal occlusion and TMJ. In this study male and female are compared respectively, for in the normal samples 26 measurements showed significant differences between the male and the female. The results and conclusions axe as follows: 1 In DJD group, ANB and Angle of convexity decreased, which means the retruding of the mandible. The interincisal angle was smaller than that of the normal group. The means of the overbite were -2.1mm in male and -3.0mm in female, and the means of the overjet were 5.6mm in male and 6.7mm in female. The profile was similar to that of Angle's Class II div.1 open-bite. 2. SN-GoMe and FMA increased in DJD but SN-PP and FH-PP did not show any significant difference. In TMJ DJD open-bite cases, the bony structure lower than the palatal plane seemed to play an important role in developing open-bite. 3. In DJD group, PH-ArGo, SArGo and Y-sxis angle increased significantly, but genial angle showed no significant difference. The means of hか were 50.1mm in male and 40.2mm in female, which were significantly smaller than those of the normal(56.5mm in male, 50.9mm in female). These findings seemed to indicate the posterior rotation of mandible resulted from the shortening of the ramus height. 4. Anterior faical height(AFH), upper anterior facial height(UAFH) and lower anterior facial height (LAEH) of DJD showed no significant increase as compared with those of the noraml group. There was no significant difference in the ratio of upper anterior facial height to lower anterior facial height(UAFH/LAFH). But, lower posterior facial height(LPFH) was significantly smaller than that of the normal group. 5. It was thought that the peculiar profile of the TMJ DJD open-bite was resulted from the posterior rotation of mandible as the ramus became short following the degerative destruction of of the condylar head and neck.

• The Korean Journal of Applied Statistics
• /
• v.30 no.2
• /
• pp.301-309
• /
• 2017

It is often possible to test for differences in population means when two or more samples are extracted from each N population. However, it is not possible to test for the mean difference if one sample is extracted from each population since a sample mean does not exist. But, by dividing a group of samples extracted one by one into two groups and generating a sample mean, we can identify a heterogeneity that may exist within the group by comparing the differences of the groups' mean. Therefore, we propose a minimum combination t-test method that can test the mean difference by the number of combinations that can be divided into two groups. In this paper, we proposed a method to test differences between means to check heterogeneity in a group of extracted samples. We verified the performance of the method by simulation study and obtained the results through real data analysis.

• Proceedings of the IEEK Conference
• /
• 2003.07d
• /
• pp.1507-1510
• /
• 2003

We propose UPGMA(Unweighted Pair Group Method using Average distance) as hierarchical clustering to detect abrupt shot changes using multiple features such as pixel-by-pixel difference, global and local histogram difference. Conventional $\kappa$-means algorithm which is a method of the partitional clustering, has to select an efficient initial cluster center adaptively UPGMA that we propose, does not need initial cluster center because of agglomerative algorithm that it starts from each sample for clusters. And UPGMA results in stable performance. Experiment results show that the proposed algorithm works not only well but also stably.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
• /
• 2002.04a
• /
• pp.271-274
• /
• 2002

Heavy metal concentrations of roadside soils around interchanges were found to decrease as Zn)Cu>Pb and be lower than the legal guideline levels. The concentrations of Cu, Pb and Zn in roadside soils around Kyeong-bu highway interchanges were 1.3 to 1.5 times higher those around Yeong-dong highway interchanges. Difference of heavy metal concentrations in soils seems to be caused by difference of traffic volume between Kyeong-bu and Yeong-dong highway interchanges. This means that contamination of interchange roadside soils mainly depends on traffic volume.

• Proceedings of the Korea Concrete Institute Conference
• /
• 2001.11a
• /
• pp.503-508
• /
• 2001

With difference to strengthening which could be evaluated structural efficiency, it is hard to do quantitative repair efficiency evaluation achieved compressive strength test or appearance investigation. In this paper, chloride ion penetration test is exacted to core specimens picked from repaired structure for quantitative repair evaluation. The result of experimentation shows repair efficiency quantitatively by means of difference between penetration amount of chloride ion for repaired and unrepaired core specimens.