• Journal of Navigation and Port Research
• /
• v.32 no.4
• /
• pp.271-277
• /
• 2008

When performing steering by an autopilot (automatic steering gear), a sensitivity adjustment is mainly determined by P value and D value. These values differ in the optimal combination by model of ship and external forces. This research was carried out simulation case studies and examined movement of Pure Car Carrier, which easily received ship by wind pressure influence in low speed We investigated the relation of horizontal migration(transfer) of ship's body and P-D value. Based on it, four parameters of P-D at approaching berth could be suggested Hence there were suggestions of parameters; Distance to maximum lee point, Time to maximum lee point, Time to return to original course and Time to 300th second. The correlation of these parameters and P-D value were also considered. As a result, we think that this index, like formulated P-D, leads to an easy and safe navigation by utilizing these indices.

• The korean journal of orthodontics
• /
• v.30 no.2 s.79
• /
• pp.175-183
• /
• 2000

The purpose of this study was to identify the compensatory adaptation of dentoalveolar structure according to the various skeletal relation through the statistical correlation between the anteroposterior, vertical skeletal and dentoalveolar relation. For this study, the sample were consisted of 101 adult subjects (51male and 50 female, mean age; male 23.6 years, female 21.5 years) who had good occlusion with the range of normal overjet and overbite and acceptable Angle's class I molar relationship which had not been related orthodontically The results were as follows : 1. Even though acceptable normal occlusion, the range of measurements which represent anteroposterior, vertical skeletal relation and dentoalveolar relation were very wide. 2. Upper and lower incisor axis were significantly correlated with anteroposterior skeletal relation, which means the mote lingual inclination of upper anterior teeth and the more labial inclination of lower anterior teeth according to the more anterior position of mandible to the maxilla (P<0.01). 3. Upper and 1ower anterior alveolar bone height was statistically correlated with the lower anterior vertical skeletal height. 4. Upper and 1ower alveolar bone height were not correlated with anteroposterior skeletal relation (P>0.05). 5. The correlation between the incisor axis and vertical skeletal was more closely related in upper anterior teeth than the lower anterior teeth. To summarize the above results, even though acceptable normal occlusion, skeletal and dentoalveolar relation was very widely ranged, and there were close relationship between the anteroposterior skeletal relation and the inclination of upper and lower anterior teeth and between the vertical skeletal relation and upper and lower anterior alveolar bone height. These finding can be concluded as compensatory adaptation to the different skeletal relationship.

• Korean Journal of Health Education and Promotion
• /
• v.25 no.3
• /
• pp.95-109
• /
• 2008

Objectives: The study was conducted to investigate visual display terminal(VDT) and related risk factors in office workers. Method: The study subjects were 539 officers at 3 places of business in Gwangju. The data were collected by self-administered questionnaire between October 12 and October 17, 2007. and they agreed to participate in this study. The tool was developed by Moon, Jaedong(1991) for VDT syndrome. Data analysis by using SPSS/win 10.0 was performed with descriptive statistics, t-test and ANOVA. Results: The summary of results is as follows: 1) The mean score of total VDT syndrome was $1.17{\pm}.65$ of full score 4.00, which was lower than other research. 2) For relation between general characteristics and total VDT, sex (t=-5.777, p=.000), age (F=3.516, p=.015), satisfaction of job (F=9.540, p=.000), self-awareness of health (F=25.015, p=.000) had statistically significant difference. 3) For relation between behavioral work factors and total VDT, break time of work(t=-5.363, p=.000), eye movement during computer work(t=2.176, p=.031), wrist exercise during(t=2.337, p=.020), distance between monitor and eyes(F=3.682, p=.012) had statistically significant difference. 3) For relation between environmental work factors and total VDT, height of chair(F=8.801, p=.000), space under desk(F=4.244, p=.015), reflection of monitor(t=2.697, p=.008) had statistically significant difference. Conclusion: To prevent and relieve VDT syndrome and musculoskeletal disorders in office workers, it is important to teach good posture and stretching exercise during work.

• Journal of the Korean Home Economics Association
• /
• v.25 no.4
• /
• pp.123-139
• /
• 1987

A study on the House wife's Family Relation Satisfaction. This study aimed to investigate house wives satisfaction of their family relation. Major research question are as followings; 1. How do housewives satisfy their family relations? 2. What are difference in housewives satisfaction to such family relation areas. Marital relation, children relation, husband's parents relation, relative relation, and husband sister relation. 3. What are difference in housewives family relation satisfaction in terms of housewives personal variables (age, education, employment, husband job, family life cycle, family type…etc) The Subject of this study consisted of 863 housewives sampled in pusan, changwon area. The questionnaire which used in this study is made by the researcher. The data are analyzed statis factly. The finding of this study are as followings: 1. Home makers were found to show the high-satisfaction is 28.5%, the middle-satisfaction is 57.5% and the low satisfaction is 14.0%. And Pusan higher than changwon. T-test showed the significance according to Area(p<.05) 2. The satisfactioon of family-relations areas was showed that pusan higher than changwon homemakers on whole field. 3. The main factors which affected the state of satisfaction about their family-relations were their economical level, the state of employed of homemakers, the type of family.

• Journal of Korean society of Dental Hygiene
• /
• v.10 no.1
• /
• pp.173-183
• /
• 2010

Objectives : The purpose of this study was to provide basic materials for defining educational direction of dental hygiene department and establishing the instruction to improve direction consulting and academic effect of dental hygiene department student. Methods : The researcher surveyed the relation among job aptitude, academic ability and academic performance by selecting 131 dental hygiene department students of P university as study targets. Results : For high school classifications, direction searches and academic abilities of dental hygiene department students of P university, it was found that classical high school was 68.7% and vocational high school was 31.3%. For job aptitude, social type was 58.0% and artistic type was 26.0% so they were usual. For academic ability, interpersonal relation($12.78{\pm}1.34$), music/rhythm was($12.32{\pm}1.09$) and natural($12.32{\pm}1.00$) showed high scores in order over the first, the second and the third field and language/vocabulary(22.6%) and music/rhythm(21.6%) was the next. For academic performance depending on high school classification, job aptitude and academic ability, there was a significant difference in high school classification by classical high school($86.55{\pm}8.21$) and vocational high school($85.34{\pm}11.31$)(p<0.05) and there was also a significant difference in job aptitude by social type($85.45{\pm}9.42$) and artistic type($88.41{\pm}6.93$)(p<0.05). In the mutual relation between academic ability and academic performance, the high academic ability score in the first field was led to the high score in the second and the third field, showing significant mutual relation(p<0.00). Conclusions : This research has been accomplished by college students of dental hygeine department, so you have to consider before generalizing these results. Therefore it is required to research more, likewise using a comparison with other students or it should be conducted by general people.

• Journal of Korean Clinical Nursing Research
• /
• v.24 no.2
• /
• pp.137-146
• /
• 2018

Purpose: The purpose of this study was to identify the influence of nursing organization culture on resilience of new nurses. Methods: Participants were 1,033 new nurses with careers of less than 12 months and who were from 43 general hospitals located in Seoul, Incheon, other metropolitan cities and provinces in Korea. The data were analyzed using t-test, ANOVA, Pearson correlation coefficient and multiple regression with SPSS/WIN 24.0 program. Results: Relation-oriented culture was scored highest for perception of organizational culture by new nurses (3.35), followed by hierarchy-oriented culture (3.19), innovation-oriented culture (3.12), and task-oriented culture (2.73). The score for resilience of the new nurses was 3.49, and the first subcategories were interpersonal relationship ability 3.66, self-positivity 3.45, and self-control ability 3.36. Relation-oriented culture (${\beta}=.30$, p<.001) was the most significant factor influencing resilience of new nurses, followed by innovation-oriented culture (${\beta}=.14$, p=.001), hierarchy-oriented culture (${\beta}=.12$, p<.001), task-oriented culture (${\beta}=-.10$, p=.003) in that order ($R^2(adj. R^2)=.16$, F=47.04, p<.001). Conclusion: Findings show that for improved resilience in new nurses it is necessary to develop relation-oriented culture to provide a cooperative work environment(friendly interpersonal relation and dialogue) for new nurses and to encourage involvement of these members in the hospital culture.

• Structural Engineering and Mechanics
• /
• v.14 no.4
• /
• pp.381-400
• /
• 2002

This paper presents several applications of an improved estimator of the constitutive relation error (CRE) for plasticity problems. The cumulative aspect of the CRE estimator with respect to time is analyzed and we propose a first analysis of the local effectivity indexes of the CRE estimator in plasticity.

• Asian Pacific Journal of Cancer Prevention
• /
• v.15 no.8
• /
• pp.3415-3418
• /
• 2014

Background: AKAP12 inhibits oncogenic proliferation, invasion, chemotaxis and neovascularization. Bcl-2 and p53 are two important apoptotic markers that play roles in apoptotic processes. It has been found that AKAP12 blocks the cell cycle and induces apoptosis in fibrosarcoma cells. In our study we assessed the relationship of AKAP12 with apoptotic markers, Bcl-2 and p53. Materials and Methods: Our study included 45 cases that were histopathologically diagnosed with colorectal carcinoma from the tissue samples acquired by surgical resection. AKAP 12, Bcl-2, and p53 expression was examined by immunohistochemistry. Results: A total of 45 colorectal adenocarcinoma patients - 17 (37.8%) females and 28 (62.2%) males - were included in this study. AKAP12 expression was found to be negative in 8 patients (17.8%), and positive in 37 patients (82.2%). Bcl-2 was found positive in 6 patients (13.3%) and p53 in 29 patients (55.6%). AKAP12 expression had no significant relation with Bcl-2 and p53 expression (p:0.939, p:0.079, respectively). Conclusions: Although various studies have pointed to apoptotic activity of AKAP12, the literature is limited regarding relations with p53 or Bcl-2 expression. In the present study, we found no relation in colorectal carcinomas.

• Phonetics and Speech Sciences
• /
• v.4 no.3
• /
• pp.51-58
• /
• 2012

The purpose of this study is to measure the impact of Korean speakers' English stop pronunciation on their general pronunciation proficiency. For these purposes, 20 Korean speakers read English sentences and their pronunciations were rated by native English speakers. The Korean speakers' VOT values of English stops in sentences were then measured and the relation between the VOT values and native speakers' pronunciation rating was compared. Here, the relation between (1) the proficiency score of each speaker and VOT values; and (2) the proficiency score of each sentence and VOT values were analyzed. The results show that there is a relation between the proficiency score of each sentence and VOT values of /t, b, d, g/; and there is a relation between VOT values of /t, b, d, g/ and proficiency scores of each speaker while these is a weak relation between VOT values of /p, k/ and proficiency scores of each speaker.

• Korean Journal of Occupational Health Nursing
• /
• v.26 no.3
• /
• pp.197-206
• /
• 2017

Purpose: This study aimed to investigate the relationship among nurses' workplace bullying experience, organizational culture, and organizational commitment. Methods: Nurses who had worked for more than 6 months (N=299) were selected from 5 general hospitals. Data were collected from August to September 2014, using a self- reported questionnaire, and were analyzed using SPSS version 20.0. Results: Among the participants, 17.7% reported having experienced workplace bullying. Those who had experienced workplace bullying reported significantly lower relation-oriented culture, innovation-oriented culture, and organizational commitment as compared to the other group (t=-2.50, p=.016; t=-2.60, p=.011; t=-2.91, p=.004, respectively). Rank-oriented culture was higher in those who had experienced workplace bullying as compared to those who had not (t=2.76, p=.007). Conclusion: Those who had experienced workplace bullying had higher scores on rank-oriented culture and lower scores on innovation-oriented culture, relation-oriented culture, and organizational commitment. To reduce workplace bullying among nurses, hospital managers should improve the relation-oriented organizational culture and alleviate the rank-oriented culture.