• 한국의류학회지
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• 제39권5호
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• pp.683-694
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• 2015

This study defines the concept of triple media and examines various marketing media that influence a consumer's purchase of outdoor fashion brands. We explore the effects of gender and age on information searches related to outdoor fashion brands and purchase criteria related to outdoor clothing. A survey of consumers who visited stores was conducted. We targeted consumers between the ages of 15 and 50 and analyzed 764 questionnaires. The results show that triple media involve eight factors: five factors (printed ads or radio ads, campaign ads, Internet ads, TV ads, and store ads) in paid media, one factor (direct marketing) in owned media, and two factors (channels of social network services, channels of direct promotion) in earned media. Further, the evaluation/appraisal criteria of outdoor clothing consist of four attributes (practicality, promotional activities, product power, and customer service). The teenager group showed significantly low usage of campaign ads, direct marketing, and direct promotion, while the use of Internet ads is particularly high among teenagers compared to other age groups. Moreover, teenagers are least likely to rely on practicality when evaluating clothing and are most likely to value product power. Additionally, women show significantly high usage of direct marketing. In terms of the clothing appraisal criteria, women assign higher value to practicality and promotional factors than men. The theoretical and managerial implications of the findings are discussed.

• 한국의상디자인학회지
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• 제10권3호
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• pp.73-88
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• 2008

The media culture influences upon young people while introducing new cultures by every hour. Considering the mainstream culture, in which media has the greatest effect on young people, this article examines the symbolic significances of youth fashion through media culture. The results of this study can be summarized as the following: First, young people's popular culture ("pop culture") is becoming the medium that leads to the creation of similar cultures of the young people globally through various routes. Culture is being created by integration of diverse media, and not by what is seen through a single medium. Typical young people's culture, which is formed due to the influence of media culture, includes community culture, pun culture, virtual culture and fandom culture. Second, in order to examine youth fashion that is seen in those media, the survey has been conducted on media stars, tecktonik dance groups, fashion models, avatars and online communities, which are fashion icons influencing young people. Third, youth fashion, which has been formed centering on media culture, has the flexible property that varies the symbolic significance according to which culture becomes the main axis. The symbolic significance in fashion, which is seen on media culture young people are contacting, has been examined in the aspects of value orientation, diversity orientation, speed orientation and digital orientation.

• 상하수도학회지
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• 제10권2호
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• pp.55-69
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• 1996

Backwashing is one of the most important processes in water treatment. Several models have been utilized to predict minimum fluidization velocity and expansion of media. However, it is not unusual that the actual bahavior of media dose not agree well with the prediction. This study has investigated the applicability of models in predicting the minimum fluidization velocity of sand media. However even the better model has predicted minimum fluidization velocity 1.1 to 1.8 times higher than actual fluidization velocity. The expansion rate of sand media was inspected. It is found that the actual expansion rate was greater than the predicted. In this study condition, use of $d_{10}$ instead of $d_{60}$ was better to predict the expansion of media. On the contrary to the sand media, the actual expansion of anthracite media was less than that predicted. Sometimes it is reported that the dual media has been overflown during backwashing and mixed severely at the interface. It is because the grain size distribution of anthracite has not been selected properly. The numerical values for media expansion found in this study could be referred as the useful data in operating and/or designing filter media.

• 상하수도학회지
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• 제23권2호
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• pp.215-222
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• 2009

This study compares the performance of the filters with various media in pretreatment of seawater desalination by reverse osmosis. For this purpose, Masan bay seawater is used as raw water. The filter performance is evaluated by the filtrate quality and the head loss development. Five media is selected in this study: anthracite, $Filtralite^{(R)}$, sand, Pumice, $AFM^{(R)}$. These media are used in combination for dual media filter and alone for mono media filter. The comparison results show that NC0.8-1.6 is the best $Filtralite^{(R)}$. The dual media filter of NC0.8-1.6 and sand outperformed other filters in particle removal. The dual media filter of anthracite and sand showed good performance in organic removal. The mono media filter of Pumice produced the similar filtrate quality as the mono media filter of sand although the effective size of Pumice is considerably greater than that of sand. Due to big size, head loss development is maintained slow in the filtration of Pumice.

• 농업과학연구
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• 제43권2호
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• pp.176-185
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• 2016

This research was conducted to evaluate various levels of dolomitic lime incorporated as pre-planting fertilizers on the growth of red-leaf lettuce. To achieve this, three root media were formulated by mixing coir dust with expanded rice hull (CD+ERH, 8:2, v/v), carbonized rice hull (CD+CRH, 6:4, v/v), and ground pine bark (CD+GRPB, 6:4, v/v). During formulation, equal amounts of essential nutrients, except dolomitic lime, were incorporated into all root media and the levels of dolomitic lime were varied from 0 to $7.5g\;L^{-1}$ at 1.5 g increments. Seedlings of red-leaf lettuces at the 3rd leaf stage were transplanted into each medium treatment. Crop growths were measured 5 weeks after transplant and soil solutions were collected every week and analyzed for pH, EC, and nutrient concentrations. The treatments showing the heaviest fresh and dry weights in CD+ERH, CD+CRH, and CD+GRPB were 4.5 g, 4.5 g, and $7.5g\;L^{-1}$ of dolomite, respectively. The pHs of three root media yielding the highest crop growths were in the ranges of 6.4 to 7.1. These ECs in CD+CRH medium were around $1.0dS\;m^{-1}$ higher than those of CD+ERH and CD+GRPB when application rates of dolomitic lime were equal. $K^+$ concentrations were higher than $Ca^{+2}$ and $Mg^{+2}$ concentrations until week 2 in three root media. But $Ca^{+2}$ and $Mg^{+2}$ concentrations were higher than $K^+$ concentrations after week 3 in all root media. The concentrations of $PO_4{^{-3}}$ in all root media got abruptly lower until week 2. These results indicate that appropriate levels of dolomitic lime, as pre-planting nutrient charge fertilizers in CD+ERH and CD+GRPB media, are 4.5 and $7.5g\;L^{-1}$, respectively.

• 유통과학연구
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• 제14권10호
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• pp.165-178
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• 2016

Purpose - This study aims to empirically verify the impact of media richness, social presence, and prior life satisfaction on various continual usage or withdrawal behaviors of SNS users via both a positive path of satisfaction and a negative path of relative deprivation. By identifying these causal paths, we observe dynamic interactions of SNS user psychology in a balanced view, and provide some implications about design principles for SNS providers. Research design, data, and methodology - We developed 16 hypothesis based on media richness theory, social presence theory, social comparison theory, the literature about relative deprivation, and the literature about the various reactions of IS users. The rich SNS media, social presence recognition among peer SNS users, and prior life satisfaction could generate positive experience, attitude, and virtuous behavioral intentions among SNS users. At the same time, rich media, low social presence, and low prior life satisfaction could generate relative deprivation and could increase withdrawal behavioral intentions such as refusal to provide information, misrepresentation of information, and removal of uploaded information in SNS. Scenario surveys were conducted to collect data from potential SNS users. Data from 357 surveys were collected and analyzed through a PLS algorithm to test the hypotheses. Results - Media richness, social presence, and prior life satisfaction could significantly increase perceived enjoyment, satisfaction, and behavioral intention of continual usage and knowledge sharing. They also could significantly decrease refusal and misrepresentation intention. Relative deprivation is significantly decreased only by prior life satisfaction. Relative deprivation could not significantly decrease satisfaction, but it could significantly increase misrepresentation and removal intention, which could be regarded as information distortion intention. Conclusions - SNS providers should focus on developing rich media and social presence support because these two variables could impact the positive experiences of SNS users. Moreover, the positive experiences could heavily influence SNS user behavior. Some management is needed to prevent relative deprivation and its consequences of misrepresentation and removal intention. SNS providers should prevent SNS users from excessive image misrepresentation and removal as this information distortion could be the source of relative deprivation.

• 한국산업정보학회논문지
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• 제19권2호
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• pp.105-117
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• 2014

소셜미디어 시장의 다매체 환경으로의 변화는 이용자가 요구하는 선호요인의 충족에 따라 소셜미디어를 선택할 수 있게 되었고, 각 소셜미디어 간 경쟁을 유발시키고 있다. 따라서, 본 연구는 이용자의 충족이라는 측면에서 소셜미디어 시장의 다매체 환경을 고려한 소셜미디어 간의 경쟁에 주된 관심을 두었다. 이를 확인하기 위해 한정된 자원에서의 미디어간 경쟁관계를 파악하기 위해 널리 이용된 적소이론을 이용하여 경쟁관계를 확인하였다. 연구결과에 따르면 (1) 페이스북과 카카오톡이 이용자의 기대를 가장 많이 충족시키고, (2) 페이스북과 카카오톡이 선두그룹으로 경쟁하고 있고, 블로그, 유튜브와 트위터가 이들을 추격하고 있으며, (3) 카카오톡이 이용자가 기대하는 다양한 기대를 가장 많이 충족시키는 것을 확인하였다. 이 연구결과는 소셜미디어가 시장에서의 경쟁력을 확보하기 위해서는 모바일 환경에서의 편리성, 즉시성을 제공하고, 이용자가 보다 쉽게 네트워크를 활용할 수 있도록 하는 서비스 개선이 필요하다는 점을 시사한다.

• 한국콘텐츠학회논문지
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• 제16권12호
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• pp.181-191
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• 2016

현재 IPTV에서 서비스되는 미디어콘텐츠의 검색 질의어 분석을 통해, 고객의 미디어콘텐츠를 선택하는 기준을 살펴보았다. 그 결과 명시적인 메타정보뿐만 아니라 콘텐츠의 내용(소재, 줄거리 등)과 감성 정보가 중요한 요소가 된다는 점을 발견하였다. 그리하여 본 연구에서는 IPTV에서 제공하는 다양한 미디어콘텐츠를 사용자에게 효율적으로 제공하기 위해, 미디어콘텐츠의 감성 정보를 활용하기 위한 감성분류체계를 설계하였다. 그리고 제안한 감성분류체계를 기반으로 사용자 감성 프로파일을 구축하고, 단계적 처리 모듈을 탑재하여 미디어콘텐츠를 편성하는 맞춤형 큐레이션 시스템을 제안하였다. 마지막으로 제안한 맞춤형 미디어콘텐츠 큐레이션 시스템의 효과를 입증하기 위하여, 사용자 만족도 설문 조사를 실시하여 72.0점을 받았다. 또한 인기도 기준으로 편성한 결과와 제안한 시스템의 편성 결과를 비교한 결과 실 사용자의 시청 행위로 이어지는 비율이 최대 10배 높게 나타났다.

• 한국언론정보학보
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• 제46권
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• pp.148-176
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• 2009

이 연구의 목적은 장애인 미디어교육에 대한 인식사례를 분석함으로써 장애인들의 미디어 능력 촉진을 위한 과제와 지원방안들을 모색하는 데 있다. 이를 위해 장애인 미디어교육과정에 참여한 경험이 있는 장애인 미디어교육 교사들과 학습자들과의 반개방형 집단심층인터뷰(FGI)를 실시하고자 한다. 여기서 인터뷰의 초점은 장애인 미디어교육의 목표, 장애요인, 교수법 그리고 활성화 방안 등으로 구성하고자 한다. 특히 반개방형 인터뷰를 실시하여 설문기조를 유지하되 연구참여자들이 보다 자유로운 의견을 개진할 수 있도록 한다. 이 연구에서 FGI를 통한 질적 연구를 하는 이유는 상호 토론이나 의견 개진을 통한 다양한 인식과 경험들을 추출할 수 있기 때문이다. 또한 교사뿐 아니라 학습자 모두를 선정한 근거는 공통된 입장과 이견들을 비교함으로써 현실에 근접한 다각도의 인식 경험들을 분석할 수 있기 때문이다.

• Structural Engineering and Mechanics
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• 제67권1호
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• pp.53-67
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• 2018

The changes of parameters of pressure and velocity of propagation of elastic pressure and shear waves in uniformly deformed solid compressible media are studied within the nonclassically linearized approach (NLA) of nonlinear elastodynamics to create a new theoretical basis of the geomechanical interpretation of various groups of geophysical observational and experimental data. The cases of small and large deformations are considered while their describing by various elastic potentials, i.e., problems considering the physical and geometric nonlinearity. Convenient analytical formulae are obtained to calculate the indicated parameters in the deformed isotropic media within the nonclassical linear and nonlinear solution in the NLA. Specific numerical experiments are conducted in case of overall compression of various materials. It is shown that the method (generally accepted in the studies of mechanics of standard constructional materials) of additional linearization (relative to the pressure parameter) in the basic correlations of the NLA introduces substantial quantitative and qualitative errors into the results at significant preliminary deformations. The influences of the physical and geometric nonlinearity on the studied characteristics of the medium are large in various materials and differ qualitatively. The contribution of nonlinear components to the values of the considered parameters prevails over linear components at large deformations. When certain critical values of compression deformations in the medium are achieved, elastic waves with actual velocity cannot propagate in it. The values of the critical deformations for pressure and shear waves differ within different elastic potentials and variants of the theory of initial deformations.