• 전기의세계
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• v.42 no.9
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• pp.20-27
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• 1993

1. 철근출막은 결정자기이방성의 영향이 작기 때문에, 자기특성이 막의 기하학적구조에 의해 거의 결정되고 그것에 의하여 자성막의 설계가 가능하다. 2. 코발트 근출막은 결정자기이방성이 자기특성에 영향은 크기때문에 코발트 결정의 자화용역축(C축)의 배향에 의하여 자기특성은 크게 변한다. 따라서 이 C축의 배향성을 변화시켜 석출입자의 형태를 바꾸지 않고 작은 포아직경에서도 항자력의 제어가 가능하였다. 3. 코발트-철합금신출막은 조성변화에 의하여 자기특성을 제어할 수 있다. 또 ㅈ포화자화, 항자력도 철을 석출한 자성막에 비해서 높은 값을 나타냄을 물론, 우수한 각형화(Mr/Ms)로 얻어지는 큰 자기에너지적으로 수직 자기기록방식의 고정밀의 로타리 엔코다에의 응용이 유망하다.

• Korean journal of communication and information
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• v.30
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• pp.143-174
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• 2005

This study aims at applying Chaffee & McLeod's co-orientation model to Internet portal news providers and users to find out their mutual understanding toward various features of online news. Included in those features are interactivity, expansion of user role, larger choices(user characteristics), real time update of news, limitless quantity, contextualized contents through hypertext, data base service, and multimedia contents(contents characteristics). To test the level of agreement, accuracy and congruency between the parties, a survey was conducted among 105 portal news providers from 11 online news media, and 105 portal news users between ages 20 and 40. The result indicated that both portal news providers and users showed agreement for user characteristics, but by and large displayed either ignorance or partial congruency toward contents characteristics. Communication between portal news providers and users are thus exported to increase until it reaches the point where the internet's newly born identity as a news medium gets finally stabilized.

• Microbiology and Biotechnology Letters
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• v.18 no.3
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• pp.260-267
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• 1990

The mechanism of enzymatic hydrolysis of raw corn starch by the purified glucoamylase and a - amylase in an agitated bead reaction system was studied by investigating the changes of sugar profiles produced by each enzyme, the granular structure of raw corn starch, the amount of enzyme adsorption on residual starch, and the amylose content in residual raw starch. The sugar profiles produced by the action of exo-type glucoamylase or endo-type $\alpha$ -amylase in an agitated bead system were not recognizably differed with those produced in reaction system without bead. Without enzyme the intergenic microcrystalline structure of starch granule was not changed by the simple mechanical impact of solid media, but it was cleaved. However, starch granule was fragment into large number of small particles by the synergistic action of enzyme and attrition-milling media, identified to be the major saccharification enhancing mechanism along with the increased amount of enzyme adsorption. The amylose content decreased more readily in an agitated bead reaction system, especially by $\alpha$ -amylase.

• Environmental Analysis Health and Toxicology
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• v.18 no.4
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• pp.255-269
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• 2003

The objective of this study was to estimate human exposure to benzo (a)pyrene through multimedia/multi-pathway exposure scenario. The human exposure scenario for benzo(a)pyrene was consisted of 12 multiple exposure pathways, and the multipathway human exposure model based on this scenario constituted. In this study, the multipathway human exposure model was used to estimate the concentrations in the exposure contact media, human intake factors and lifetime average daily dose (LAD $D_{model}$) of benzo(a)pyrene in the environment. Sensitivity analysis was performed to identify the important parameters and Monte-Carlo simulation was undertaken to examine the uncertainty of the model. The total LAD $D_{model}$ was estimated to be 5.52${\times}$10$^{-7}$ mg/kg-day (2.06${\times}$10$^{-7}$ -8.65${\times}$10$^{-7}$ mg/kg-day) using the multipathway human exposure model. The inhalation dose accounted for 78% of the total LADD, whereas ingestion and dermal contact intake accounted for 20.2% and 1.8% of the total exposure, respectively. Based on the sensitivity analysis, the most significant contributing input parameter was benzo (a)pyrene concentration of ambient air. Consequently, exposure via inhalation in outdoor/indoor air was the highest compared with the exposure via other medium/pathways.

• The Journal of the Korea Contents Association
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• v.15 no.5
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• pp.98-107
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• 2015

This study analyzed the story of 'Good Morning, Ladies of the World', a multicultural program of a community radio Gwanak FM. Furthermore, the study performed an in-depth interview on Korean producing staffs and migrant casts in order to figure out the contents for the improvement of awareness and for the design of multicultural media story telling. As a result, the migrant women presented overall public discourses on their own culture, climate and customs as a sense of representative. While Korean staffs wanted to understand and communicate with their culture and to share private experiences, migrant women wished understanding and respect to their culture and removal of discrimination or prejudice. Accordingly, the storytelling design for the improvement of multicultural awareness must be a private discourse on the basis of a public discourse, and it turned out that the user of a mediator who experienced and knew culture of Korea and the migrant is necessary. And, this study recommended the need of education of migrant women and media support for a proper story planning, structuring and delivery.

• The Journal of the Korea Contents Association
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• v.12 no.8
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• pp.123-135
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• 2012

As contents go digital and networks go broadband, there are a lot of changes made to Ad market caused by multimedia and multichannel environment. While platforms as the contents distribution window are increasing, the reality is that additional Ad revenue through platforms is concentrated on mammoth exclusive media because there are small number of the media that has control over platforms is able to create production and provide capital. In addition, as Media rep laws is passed at the Assembly plenary session, tipping effect in Ad market concentrated to some media. In this reality, pay TV market is expected to be within its direct orbit as it is predicted to produce new contents and distribution growth thanks to a wide variety of genres and experimental challenge. Thus, this study is to propose the methodology and an alternative for pay Ad market expansion. As the result of this research, an improvement scheme of indirect advertisement, virtual advertisement, and prohibited advertising item is suggested, and methodology for advertising market expansion is suggested through enterprise and government.

• The Journal of the Korea Contents Association
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• v.11 no.10
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• pp.128-136
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• 2011

This is a study on the subjectivity of audiences about preference of documentaries on TV. Accordingly, Q-methodology was used for this study. As a result, audiences' various characteristics by preference types were able to be found. The individual characteristics were classified into three styles: an entertainment-oriented style pursuing enjoyment, public and society interest-oriented style pursuing public purpose, and culture-oriented style pursuing artistic value of documentaries in order. It could be inferred from the classification of preference styles that unlike the past, the choice of TV broadcasting of audiences was shifting from the passive and media-dependent form to positive form. Therefore, the research and development of content delivery and production in the multi-media and multi-channel digital broadcasting era should be focused on not only the content itself but also an audience-centered service development model reflecting audiences' desire and hope.

• Journal of the Korean Society for information Management
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• v.38 no.3
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• pp.215-238
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• 2021

Hallyu pop-culture contents which has influenced the world has sufficient preservation value as a cultural asset. However, there is still a lack of awareness of long-term preservation of Hallyu pop-culture contents and digital archiving is not in full swing, too. We requires accurate understanding of the concept, characteristics, format, media, and relationship of contents for digital archiving of Hallyu pop-culture content. Thus, this study analyzed and organized the concept, characteristics, and preservation subject of Hallyu pop-culture contents, as basic study for digital archiving of Hallyu pop-culture contents. In addition, we investigated the current status of digital archives (systems/institutions) of Hallyu pop-culture contents and Hallyu pop-culture contents, and presented basic proposal based on the problem factors.

• The Journal of the Korea Contents Association
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• v.9 no.4
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• pp.181-188
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• 2009

With the question, "What would be the difference between TV drama image production techniques under the changing circumstances of domestic broadcasting faced with multi-media, multi-channel age after 1980' s press unification and establishment of two times commercial TV stations?" This study analysed image production techniques of three periods of TV drama development, 'TV drama maturity period(1981-1990)', 'TV drama transition period(1991-2000)', 'TV drama take-off period(2001-)'. For the image analysis within the genre of home drama, 3 dramas for each period were selected and analysed cameraworks, shot size, shot duration with the broadcasting station's DVD, homepage and manuscript. The result of this analysis revealed that the change of shot size was slight but the change of cameraworks was great, the usage of zoom and tilt diminished but the usage of dolly and track increased. and the average shot duration drastically diminished during the take-off period. These results show us that broadcasting production equipments developed during the periods, and broadcasting stations poured all-out efforts for the higher viewing rates and international competitiveness.

• The Journal of the Korea Contents Association
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• v.8 no.6
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• pp.34-42
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• 2008

MAC(Medium Access Control) is demanded to provide end-to-end QoS(Quality of Service) for a variety of traffic in the wireless networks. When all the traffic is integrated in the channel, the main difficulty of the MAC protocol is how to efficiently support multi-class traffic in the limited bandwidth wireless channel. In this paper, we proposed the dynamic bandwidth slot method for improving QoS of the real time traffics. In this paper, we used in-band scheme to send dynamic parameter and considering buffer size and delay variation, we enabled 2 state bits to send to base station in mobile station. The proposed algorithm is to guarantee QoS of real time traffic and maximize transfer efficiency in wireless networks.