• The Journal of the Korea Contents Association
• /
• v.14 no.5
• /
• pp.289-297
• /
• 2014

The purpose of this study was to investigate the relation between smartphone addiction and interpersonal competence of college students using social network service(SNS) through smartphones. This study used a descriptive study design. The convenience sample consisted of 502 college students in six cities. The data were collected from May to June in 2012 using Korean Smartphone Addiction Proneness Scale and Interpersonal Competence Questionnaire. Descriptive statistics, ${\chi}^2$-test, t-test, analysis of variance, and Pearson correlation coefficient were used to analyze the data. The results showed that 24.8% of SNS users were considered as a risk group, while 75.2% were normal user group. There were no significant differences of interpersonal competence between risk group and normal user group in the SNS users. However, risk group had higher self-disclosure scores than normal user group. The subjects who had higher scores for virtual life, one of smartphone addiction subdomains, had lower interpersonal competence and those with higher smartphone addiction scores showed lower score of managing interpersonal conflict in subdomains of interpersonal competence. These findings would contribute in development of preventive interventions for smartphone addiction and improvement program for interpersonal competence in college students.

• Journal of Science Education
• /
• v.37 no.1
• /
• pp.1-10
• /
• 2013

The purpose of this study was to examine the effect of multiple intelligences-specific observation strategy on observation skills, achievement and scientific attitude in elementary science class For this study, the observation learning for the multiple intelligences-specific observation strategy was applied to elementary science class. The results of this study were as follows: To examine this learning materials were applied to elementary science curriculum, and an experimental group and a control group were selected from 4th graders at elementary school J located in Incheon. The results of this study were as follows.: 1. this study was found statistically significant difference in the pupil's enhancement of the observation ability(p<.05). Specifically, analysis of elements of the observation abilities, it was effective to increase abilities of classification of statements, qualitative observation and quantitative observation. 2. science academic achievement of the group using this developed program was significantly higher compared with a control group. 3. there weren't differences between the comparison and experimental groups in term of the scientific attitude. But the experimental group showed greater increases in the openness, spontaneity and creativity that are the elements of scientific attitude. In conclusion, the Multiple Intelligences Observation Training was useful to develop the elementary school student's the observation ability, science academic achievement, scientific attitude(openness, spontaneity and creativity) and better be widely applied to science education.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2013.02a
• /
• pp.476-477
• /
• 2013

반도체의 성능은 최근 10년 사이에 급격하게 발전했고 아날로그 및 디지털 회로 소자들에 있어 저전력/고속 특성 요구가 커지고 있다 [1]. 상온에서 30,000 $cm^2$/Vs 이상의 전자 이동도를 가지며 큰 conduction band offset을 갖는 InAs/AlSb 2차원전자가스(2DEG) 소자는 Spinorbit-interaction의 값이 매우 커서 SPIN-FET 소자로 크게 주목받고 있다 [2]. 본 발표자들은 GaAs 기판위에 성장한 InAs 2DEG HEMT 소자의 전/자기적인 특성과 고속반응 물질로 주목 받는 InSb 박막소자의 doping 특성에 따른 전기적/물리적인 특성의 평가에 대해 그 결과를 소개하고자 한다. 격자정합과 Semi-insulating 기판의 부재로 상용화되어 있는 GaAs와 InP 기판위에 물질차이에 따른 고유의 한계 특성을 줄이기 위한 Pseudomorphic이라 불리는 특별한 박막 성장 기법을 적용하여 높은 전자 이동도를 가지며 spin length가 길어 Spin-FET로서 크게 주목받고 있는 InAs 2DEG HEMT 소자를 완성시켰다. 60,000 ($cm^2$/Vs) 이상의 높은 전자 이동도를 갖는 소자의 구현을 목표로 연구를 진행하였으며 1.8 K에서 측정된 Spin-orbit interaction의 값은 6.3e-12 (eVm)이다. InAs/InGaAs/InAlAs 및 InGaAs/InAlAs 구조의 InP 기반의 소자에서 보다 큰 값으로 향후 Spin-FET 응용에 크게 기대하고 있다. 또한, GaAs 기판위에 구현된 InSb 소자는 격자부정합 감소를 위해 InAs 양자점을 사용하여 약 $2.6{\mu}m$ 두께로 구현된 InSb 박막 소자는 상온에서 약 60,400 ($cm^2$/Vs)의 상온 전자이동도를 보였으며 현재 동일 두께에서 세계 최고결과(~50,000 $cm^2$/Vs)에 비해 월등하게 높은 값을 보이고 있다. Hall bar pattern 공정을 거쳐 완성된 소자는 측정 결과 10~20% 이상 향상된 전자 이동도를 보였다. 2e18/$cm^3$ 미만의 p-doping의 경우, 상온에서 n-type 특성을 보이나, 저온에서 p-type으로 변하는 특성을 보였고 n-doping의 경우 5e17/$cm^3$까지는 전자 이동도만 감소하고, doping에 의한 효과는 크게 없었다. 1e18/$cm^3$의 높은 doping을 할 경우 carrier가 증가하는 것을 확인했다. 이상의 측정 결과로 Spin-FET 소자로서 아주 우수하다는 것을 확인할 수 있었고 n-/p- type이 특성을 고려한 high quality InSb 박막소자의 응용을 위한 중요한 정보를 얻을 수 있었다.

• Economic and Environmental Geology
• /
• v.10 no.2
• /
• pp.75-92
• /
• 1977

Results of 359 chemical analyses of igneous and related rocks of the south Korea were collected from 35 papers to see preliminarily some trends of chemical properties of spatial igneous rock assemblages according to five geotectonic provinces: (1) Kyonggi land, (2) Ryongnam land (on diagram these are jointed together as a massif), (3) Ogcheon zone, (4) Kyongsang basin and (5) Alkali rock province. The data were plotted on the diagrams; $SiO_2$ vs. $Na_2O+K_2O$ and CaO, D. I. vs. oxides, AFM triangle, AKF triangle, and normative An-Ab-Or and Q-Or-Ab triangles for each rock assemblages of individual provinces.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.2
• /
• pp.167-174
• /
• 2020

The purpose of this study was to investigate the kinematic comparison between successful and failed trials of Lopez vault techniques in male gymnastics. The subject, an Olympic gold medalist, was YHS (age: 27 years, height: 1.6 m, and mass: 53 kg) and fourteen high speed motion capturing cameras were used for data collection. The 26 reflective sensors were attached on major anatomical positions and 15 segment-body model was used to calculate the kinematic variables. According to results, the contact duration of the spring-board for successful trial(ST) was longer and that of failed trial(FT) and the range of motion of knee joint for ST was greater than that of FT. The movement times during pre-flight between ST and FT were same, but the movement time of horse contact period for ST was shorter than that of FT. The ST showed a longer movement time during post-flight and the longer horizontal distance than those of FT. Conclusively, YHS needs to approach the horse with a higher position of the body and higher incidence angle, as well as make faster twist angular velocity in an attempt to achieve ST.

• The Journal of the Korea Contents Association
• /
• v.11 no.12
• /
• pp.674-681
• /
• 2011

'The Three Bonds And The Morals in Human Relations' was published in Joseon Dynasty period in 1434, relatively early days of comic history in the world. The gaps between comics frames have symbolic meaning as comics frames have in the area of symbols of comics. After comics frames appeared, it was likely that the advent of the gaps between frames had its own value in the aspect of comics history. Historical backgrounds of domestic comics would be built on firm base led by studying on the symbolic meaning of the gaps between comics frames. Two forms of the gaps between frames were shown in 'The Three Bonds And The Morals in Human Relations.' The first form is the gap between cloud frames. The second is the gap between cloud frame and background frame. Although a little difference is found in the shape and display, two forms of the gaps between frames in 'The Three Bonds And The Morals in Human Relations' have a similarity to modern comics. This study is to demonstrate valid background for the domestic history of comics by means of analyzing the shapes of the gap between comics frames in 'The Three Bonds And The Morals in Human Relations.' The objective of this study is to prove the meaning of the shapes of the gaps between comics frames 'The Three Bonds And The Morals in Human Relations', focusing the gaps between frames among symbols of comics.

• The Journal of the Korea Contents Association
• /
• v.13 no.5
• /
• pp.286-294
• /
• 2013

The purpose of this study was to confirm the mental health and quality of life by type-D personality of the patients with coronary artery disease (CAD). The participants in the study were 111 hospitalized patients with CAD at a hospital in Gyeonggi-do. The type-D personality was assessed by the Type-D Personality Scale (DS14). The mental health was measured with Symptom Checklist-90-Revision (SCL-90R) while quality of life was assessed with World Health Quality of Life Assessment Instrument (WHOQOL-BREF). The data analysis revealed that 36.1% of CAD patients were identified as having type-D personality traits. Non type-D personality patients have shown better mental health state than type-D personality patients (p<.001) have. The level of quality of life in the type D personality patients were significantly lower than that of non type-D counterparts (p<.001). It is necessary for type-D personality to be considered, when the nursing intervention programs for improving the mental health and quality of life of the patients with CAD are developed.

• Journal of the Korean association of regional geographers
• /
• v.10 no.2
• /
• pp.407-427
• /
• 2004

The rapid innovation of information and communication technology and its sharp falling prices have brought about the expansion of the Internet, integrating the world as one space under converged space and time. This rapid expansion of the Internet and its application in the economy have spurred the emergence of the digital economy. The Internet has influenced strongly on the changes of not only economic activities but also political, social and cultural activities. In this context, a rapidly increasing Internet expansion renders the rhetoric about the death of distance and about the meaningless of geographical place. However, the development and expansion of Internet induces a growing digital divide among nations and also a spatial inequality in a nation as the supply of the Internet has concentrated towards demand-affluent large cities. A large gap of digital access has been occurred between high income and low income countries according to a measurement of the international digital access index. In a national level, the Internet backbone has been built around large cities which favor a large amount of the Internet demand, and the affordable accessibility of these cities for the Internet services has influenced strongly on the agglomeration of Internet related industries, further inducing the construction and investment of the Internet backbone into large cities as cumulative causation effects. As a result, the expansion of the Internet affects immensely on the changes of spatial structure in a nation resulting in the new spatial phenomena such as centralization, concentration and splintering in the digitalized space-economy.

• Journal of Korea Port Economic Association
• /
• v.29 no.4
• /
• pp.289-323
• /
• 2013

This study set out to estimate and compare benefits of damage in case of storm surge at the Masan Port by using two of the most representative methodologies used to estimate benefits in port disaster prevention facility construction, namely CVM(contingent valuation method), which estimates the values of non-market goods, and MD-FDA(multi-dimensional flood damage analysis), which had usually been implemented in flood or dam projects. The benefit estimation for 30 years of costs was 2.5689 trillion won for CVM and 2.9596 trillion won for MD-FDA, which indicates that there was no big difference in benefits among disaster prevention facilities. However, in-depth testing should follow to figure out whether MD-FDA can replace CVM, which has been tested with non-market goods, when estimating the benefits of disaster prevention facilities based on those findings.

• Cartoon and Animation Studies
• /
• s.40
• /
• pp.83-107
• /
• 2015

Propaganda is often accepted as the political promotion that had used mostly by the socialist states during the First and the Second World Wars and the Cold War and by Hitler who governed Germany. Therefore, cases of the study on the image and picture propaganda were mostly posters or films of the socialism period when the propaganda was active. However, today it is not easy any more to find propaganda of the clear promotion characteristic as the past. In these modern times, it has changed into metaphorical propaganda based on 'persuasion', rather than publicity like past. Therefore, it has been changing from the direct promotion of the past into the indirect persuasion; and from the raw, direct and powerful publicity and claim into the soft and metaphorical persuasion and appeal. Thus, investigating again the contemporary propaganda will be an important element in analyzing contemporary images. The animation, selected as a target of the analysis of propaganda, exists in various ways in various images of the modern times, which is not too much to say that today's society is the television society. Besides, the animation is the image that can cover all ages as men and women of all ages can watch, so it is proper for analysis of the contemporary propaganda of metaphorical, indirect and various forms.