Journal of The Geomorphological Association of Korea
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v.19
no.2
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pp.69-79
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2012
The aim of this study is to analyze the mid-term changes of beach and dune morphology at Sohwang beach, Korea using by Total Station. Measurements executed 4 times during two year. Based on ArcInfo as point cloud obtained through precise measurement data by Total Station, alteration of beach and dune was analyzed at DEM, of which cell size is about 1m. Since these artificial constructions have influenced current systems of this region, the large-scale sand movements above mentioned have occurred around the jetty and the sea-wall. There occurred sedimentation in the north of the Jetty and erosion in the south of the Jetty, which is installed at the central part of object area. The direction of recent topographic development does not coincide with that of wind, and, rather, topographic changes occurred mainly at beaches and dunes due to the transformation of coastal water flow caused by artificial structure nearby. If precise measurement is conducted periodically, and long term monitoring is carried out by installing equipment measuring movement pattern of sediment around artificial structure, cause of topographic change around the object area could be discovered.
Journal of the Korean Society for Nondestructive Testing
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v.29
no.5
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pp.450-457
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2009
Periodical thermal shock can introduce defects in thermal barrier coating made by layers of CoNiCrAlY bond coating(BC) and $ZrO_2-8wt%Y_2O_3$ ceramic top coating(TC) on Inconel-738 substrate using plasma spraying. Thermal shock test is performed by severe condition that is to heat until $1000^{\circ}C$ and cool until $20^{\circ}C$. As the number of cycle is increased, the fatigue by thermal shock is also increased. After test, the micro-structures and mechanical characteristics of thermal barrier coating were investigated by SEM, XRD. The TGO layer of $Al_2O_3$ is formed between BC and TC by periodical thermal shock test, and its change in thickness is inspected by eddy current test(ECT). By ECT test, it is shown that TGO and micro-crack can be detected and it is possible to predict the life of thermal barrier coating.
Kim, Yun-Sig;Yun, Hee-Gon;Yun, Hyoung-Deok;Yun, Kyeong-Hi;Kim, Dong-Yeon;Hong, Myoung-Jin
Journal of The Korean Association For Science Education
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v.2
no.1
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pp.31-51
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1980
In order to research into the devel of the concept of movement and speed in our own way and compare with the Piaget's method, and then find out the formative period of such development, we have put the 192 primary school children as the model and obtained the following results. 1. As their grade upyards, all the experimental subjects showed the gradual progress generally regardless of sex or regions, while only the relative speed showed irregular progress. 2. There was no experimental subject which showed any remarkable sexual characteristics. But in the relative movement, the lower grade boys and higher grade girls made progress. In the subjects of circulation movement, intuition of speed, relative speed and speed of simultaneous movement, the boys marked better progress, whilst the girls were advanced a little in the speed of continuous movement with, different distance and time. 3. There was no conspicuous difference between the urban and rural areas, except a slight tendency that the urban children made better progress in the change of progressing direction, native continuous procedure of periodical movement, travelling road, and the speed of continuous movement with different distance and time whereas the rural children were more advanced in the relative movement, relative speed and intuition of speed. But it should be 'taken into consideration that the rural regions in our case were relatively developed in comparison with the traditional rural communities, which may explain about little regional difference. 4. Comparing our research results with the Piaget's theory, we have reached below results. Our research reports that the formative period of the conception of the problems of diverse progressing direction and a native continuous procedure of periodical movement was simultaneous, at the Piagetian level(at the fourth grade) which coincides with Piagetian theory. The travelling road should be made up a little lower at 2A/2B according' to Piagetian Level, whereas it was formed at the 4th grade as shown in our previous research. Intuition of speed should belong to the prior stage to concrete operation, but our research shows it was formed late at the 4th grade. Composition of displacement was made at the 6th grade, and it was almost equal to the first stage of formal operation(3A). But in the subjects of relative movement relative speed, the speed of continuous movement with different distance and time, relation and preservation of invariable speed, and accelerated motion, even 6th grade children marked a poor record. Summed up, the procedure conception as a basic movement conception coincides with the Piagetion level. But as for speed intuition, relative speed and speed fixation, it was Jar behind Piagetian level. Therefore it is required that we have to concentrate on the systematic training in these parts on the spot.
Journal of the Korea Academia-Industrial cooperation Society
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v.15
no.2
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pp.923-933
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2014
The subject of investigation was 13,828 people who took periodical medical examiner in some health examination centers two times in 2009 and 2011 so as to analyze changes of borderline group, disease group for 4 diseases(hypertension, diabetes, liver disease, hyperlipemia) and health behavior of some medical examiner. For the contents of investigation, drinking and smoking habit was investigated as a general characteristic of subjects. For the items of health examination, there were SBP, DBP, AST, ALT, GGT, Glucose, Total Cholesterol and Triglyceride. The main results are as follows. In comparison with the starting year of research, drinking and smoking rate of the final year was reduced respectively by 1.6% and 1.4%. And, borderline group by examination items, hypertension was reduced by 2.2% from 62.0% to 59.8% in the final year in comparison with the starting year of investigation, And, fasting blood glucose was 17.1%, hyperlipemia was 6.6%, LFT was 2.0% for the reduction. In disease group, hypertension was reduced by 0.6% from 6.7% to 6.1%. And, fast blood glucose was 1.9%, hyperlipemia was 4.2%, LFT was 1.3% for reduction. Borderline group showed more reduction in comparison with disease group in all of items. The above results showed borderline group showed more reduction of manifestation rate than disease group in all of 4 diseases. Therefore, it's expected that disease group will show reduction in the future. But, it's necessary to study on future's changes through the continuous management and tracing observation.
Global interest in climate change and sea level rise has led to active research on the velocities of glaciers. In studies about the velocity of glaciers, in-situ measurements can obtain the most accurate data but have limitations to acquire periodical or long-term data. Offset tracking using SAR is actively being used as an alternative of in-situ measurements. Offset tracking has a limitation in that the accuracy of observation is lower than that of other observational techniques, but it has been improved by recent studies. Recent studies in the $Uv{\hat{e}}rsbreen$ glacier area have shown that glacier altitudes decrease at a rate of 1.5 m/year. The glacier displacement velocities in this region are heavily influenced by climate change and can be important in monitoring and forecasting long-term climate change. However, there are few concrete examples of research in this area. In this study, we applied the improved offset tracking method to observe the two-dimensional velocity in the $Uv{\hat{e}}rsbreen$ glacier. As a result, it was confirmed that the glacier moved at a maximum rate of 133.7 m/year. The measruement precisions for azimuth and line-of-sight directions were 5.4 and 3.3 m/year respectively. These results will be utilized to study long-term changes in elevation of glaciers and to study environmental impacts due to climate change.
Park, Chung-Soon;Lee, Ji-Youn;Kim, Sun-Ju;Lee, Kyung-Hee;Ju, On-Ju
Journal of Korean society of Dental Hygiene
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v.6
no.1
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pp.49-61
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2006
This study was intended to identify the pregnant women's oral health care behaviors and the necessity of active oral care so as to use in the dental hygiene education at dental clinics as basic materials to inform the importance of oral health during pregnancy and instruct how to improve it. And to suggest a dental service direction for dental hygienists, 150 pregnant women who visited the Ostetrics and Genecology Clinics located in tl,e north part of Cholla province were surveyed with questionnaire on their oral care behaviors, from september to October in 2004. The findings were as below: 1. 43.8% of the pregnant women have ever used the dental care institutes within the recent 3 months during pregnancy period. The purpose of the visits was mostly treatment of dental caries, accounting for 40.0%. Next came the treatment of periodontal diseases, accounting for 33.8%. 2. At dental care service, 84.7% of the pregnant women informed the clinic staff of their pregnancy, 12.0% of the pregnant women were having periodical oral examination. 3. 56.7% of the pregnant women have ever inquired about oral care methods, 24.0% of the pregnant women have ever taken any oral health education, of whom 47.1% had higher schooling over graduate school, with a statistically signifiant difference. 4. 55.3% of the pregnant women made changes in their oral care practice after they got pregnant. Change of oral care practices was more obvious in those who had higher schooling background, of whom specialist women accounted 76.9%. Change of oral care practices after pregnancy was statistically significantly different to the academic background and occupation. 5. Of the changes in oral care practice after pregnancy, 51.8% of the pregnant women answered they got sensitive to change in their oral status, and 39.8% increased the frequency of tooth brushing. 6. In selecting a tooth paste after they got pregnant, 58.0% of the women didn't give any special consideration to the kind of tooth paste, while 10.7% women as low selected such tooth pastes that contain fluoride. 7. Pregnant women's route for gathering oral care information was mostly mass media and Internet which accounted for 50.7%.
This study aims to understand the history of the Victorian age that attached importance to various designs and aesthetic aspects by art and craft movement, and to present that the Victorian pattern is a factor with unlimited possibility in application and development of the modern textile product designs. Therefore, through documents research home and abroad, I considered the periodical background of the Victorian style, a change course of textile, and the theoretical backing of the Victorian pattern, and I studied and analyzed the cases of being applied in the modern textile product designs by classifying apparel, home interior, and fashion accessories. First of all, in apparel, the Victorian pattern transformed into geometrical form had much relative importance, and secondly, in the home interior, the Victorian pattern was expressed realistically or it was represented more boldly and complexly with new materials or techniques introduced. Thirdly, in fashion accessories, decorative nature was shown in intense design with the real description of the Victorian flower pattern and brilliant colors. With these results, it was found out that when the Victorian pattern was applied in the modern textile product designs, it was the factor that could be expected to make a high value added suitable with the modern sense, and it was the pattern with developmental potential with its unlimited use range. Therefore, based on this study, it is considered that the development of textile product designs utilizing the Victorian pattern and academic research, reorganizing the Victorian pattern in accordance with the modern design should be continued.
Journal of Korean Society of Archives and Records Management
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v.1
no.2
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pp.101-119
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2001
In this paper we explain the definition and component of electronic records, and reestablish the principle of the preservation. Also we discuss the conceptual approaches and requirements for long-term preservation in an electronic environment. The preservation in digital environment is to protect itself of record identity with the reliability and authenticity, and to ensure the accessibility of records. It needs to be periodical migration along with digital environment change for the long-term preservation of the electronic records. and to select software independent standard format. to ensure the integrity of electronic records along with this preservation strategy, process and relative information required for digital preservation are to record in the form of metadata. The preservation system is separated into four functional entities ; registration process, preservation process, access process, main record management system. Also, this article is conceptually to introduce the selection criteria of storage media, the security provision for the archive collections and the disaster recovery which apply to the digital archives.
This thesis aims to analyze the costume changes according to the ideological transition through the portraits of Napoleon Bonaparte. This study selected 32 color pictures of Napoleon, which was taken during his time as a general to his ascension as Emperor (1785-1815). The study qualitatively analyzed the traits and costume elements in view of the items, color and ornaments of the costume, while studying the effects of the ideological transition. The costumes of Napoleon were categorized into three parts: general, governor and Emperor. Firstly, Napoleon most frequently wore the navy uniforms when taking the portraits as a general. The uniform gave Napoleon the image of strength, youth and intelligence, which reflected the ideology of enlightenment. Secondly, the red-colored administrator uniform, combined with a military coat with culotte, was worn to make the governor look intelligent, which would ascribe to the ideological demand of the enlightenment. Lastly, his portraits as emperor showed him in long white tunica, combined with red-colored coronation cape ornamented with embroidery, ermine fur, and the crown of laurel. This costume denoted both the enlightenment and also the neoclassical trend aspiring for the return to the Greek and Roman era. In this way, the portrait of Napoleon might be expected to reflect the periodical change of the ideology through describing the transition of the costumes. It might be evident that his image of the strong general changed to that of an intelligent governor, which was in demand when the enlightenment idea became popular. When Napoleon became the emperor, his image changed into that of a Roman emperor, which implies that neoclassical ideas were used as source of influence.
This study is to know the effect of drama therapy on the sociality of isolated children. To achieve this goal, the following hypothesis was built. Hypothesis I. Dramatherapy program will improve the sociality of isolated children. I -1. Dramatherapy program will improve in cooperation. I -2. Dramatherapy program will improve in independency. I -3. Dramatherapy program will improve in sociability. I -4. Dramatherapy program will improve in law-abiding. To test this hypothesis, the social and emotional isolation test was conducted in 190 children consisting of fifth-grader from N elementary school located in Busan to select 28 children whose founded to be isolated; among these children, eight who wanted to participate in the program were positioned at the experimental group and other eight who didn't want to do and who demonstrated the range of marks similar to the experimental group were positioned at the control group. The dramatherapy program was based on the theory by Robert Landy (2002), Jennings (2003) and Phil Jones (2005) to improve the sociality of isolated children and was implemented in a total of 15 sessions, two sessions a week after school. To test the effect of the program, A modified test paper by Suh, Poongyeon (1991) with the content of testing sociality into a test paper of human nature for elementary school students to be made by Jeong, Bummo (1971) was used which consists of four sub-factors: cooperation, independency, sociability, law-abiding. As a quantitative analysis, Mann-Whitney Test were analyzed for experimental and control groups. As a qualitative analysis, the interaction patterns among student were analyzed on he basis of video tapes. The tool of observe the interaction patterns among student was Interaction Process Analysis System which was made by Bales (1970). This study obtained the following result First, the drama therapy had meaningful effect on the sociality of the sociality of isolated children. But the quantitative change of the sociality test conclusion was showed meaningfully and positive social behavior was increased in periodical process analysis. Second, in the Interaction Process Analysis(IPA) affirmative interactions increased and negative interactions decreased.
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