• ETRI Journal
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• 제41권3호
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• pp.337-347
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• 2019

The specific anthropomorphic mannequin (SAM) phantom was designed to provide a conservative estimation of the actual peak spatial specific absorption rate (SAR) of the electromagnetic field radiated from mobile phones. However, most researches on the SAM phantom have been based on early phone models. Therefore, we numerically analyze the SAM phantom to determine whether it is sufficiently conservative for various types of mobile phone models. The peak spatial 1- and 10-g averaged SAR values of the SAM phantom are numerically compared with those of four anatomical head models at different ages for 12 different mobile phone models (a total of 240 different configurations of mobile phones, head models, frequencies, positions, and sides of the head). The results demonstrate that the SAM phantom provides a conservative estimation of the SAR for only mobile phones with an antenna on top of the phone body and does not ensure such estimation for other types of phones, including those equipped with integrated antennas in the microphone position, which currently occupy the largest market share.

• 한국의류학회지
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• 제43권3호
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• pp.427-439
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• 2019

This study investigated the semantic network based on the focus of the fashion image and SNS text utilized by global SPA brands on the last seven years in terms of the quantity and quality of data generated by the fast-changing fashion trends and fashion content-based media environment. The research method relocated frequency, density and repetitive key words as well as visualized algorithms using the UCINET 6.347 program and the overall classification of the text related to fashion images on social networks used by global SPA brands. The conclusions of the study are as follows. A common aspect of global SPA brands is that by looking at the basis of text extraction on SNS, exposure through image of products is considered important for sales. The following is a discriminatory aspect of global SPA brands. First, ZARA consistently exposes marketing using a variety of professions and nationalities to SNS. Second, UNIQLO's correlation exposes its collaboration promotion to SNS while steadily exposing basic items. Third, in the case of H&M, some discriminatory results were found with other brands in connectivity with each cluster category that showed remarkably independent results.

• 한국콘텐츠학회논문지
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• 제22권10호
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• pp.642-657
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• 2022

4차 산업혁명과 팬데믹은 비대면 서비스에 대한 의존도를 높이는 결정적인 계기가 되었다. 이에 본 연구는 현재 디지털 네이티브 세대를 중심으로 각광 받고 있는 숏폼 브랜디드 콘텐츠에 대해 논의함으로써 비대면 마케팅에 대한 새로운 전략 방안을 도출하고자 하였다. 특히 소셜 미디어 상에서 숏폼 브랜디드 콘텐츠를 공유하고 소통하는 사회적 시청 현상을 중심으로 노출 유형 (직접 시청 vs. 사회적 시청)이 숏폼 브랜디드 콘텐츠와 콘텐츠가 포함하고 있는 제품에 대한 태도에 어떠한 영향을 미치는지 검증하였다. 더불어 인지된 소속감을 매개 변인으로 제시하고, 사회적 시청 과정에서 소비자가 인지하는 소속감이 노출 유형과 소비자 태도 간의 관계에서 유의한 매개 효과를 주는지 실험을 통해 확인하였다. 연구 결과, 노출 유형은 콘텐츠와 콘텐츠가 포함하고 있는 제품에 대한 태도에 유의한 영향을 미쳤으며, 또한 인지된 소속감 역시 매개 변인으로서 유의한 것으로 나타났다.

• 한국환경보건학회지
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• 제47권5호
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• pp.432-445
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• 2021

Background: The European Centre for Ecotoxicology and Toxicology of Chemicals' Targeted Risk Assessment (ECETOC TRA) tool has been recognized by EU REACH as a preferred approach for calculating worker health risks from chemicals. Objectives: The applicability of the ECETOC TRA to occupational exposure estimation from industrial uses of methanol was studied by inputting surveyed and varied parameters for TRA estimation as well as through comparison with measured data. Methods: Information on uses of methanol was collected from seven working environment monitoring reports along with the measured exposure data. Input parameters for TRA estimation such as operating conditions (OCs), risk management measures (RMMs) and process categories (PROCs) were surveyed. To compare with measured exposures, parameters from the surveyed conditions of ventilation but no use of respiratory protection were applied. Results: PROCs 4, 5, 8a, 10, and 15 were assigned to ten uses of methanol. The uses include as a solvent for manufacturing sun cream, surfactants, dyestuffs, films and adhesives. Methanol was also used as a component in a release agent, hardening media and mold wash for cast products as well as a component of hard-coating solution and a viscosity-controlling agent for manufacturing glass lenses. PROC 8a and PROC 10 of a cast product manufacturer without LEV (local exhaust ventilation) and general ventilation as well as no respiratory protection resulted in the highest exposure to methanol. Assuming the identical worst OCs and RMMs for all uses, exposures from PROC 5, 8a, and 10 were the same and the highest followed by PROC 4 and 15. The estimation resulted in higher exposures in nine uses except one use where measured exposure approximated exposures without RMMs. Conclusions: The role of ECETOC TRA as a conservative exposure assessment tool was confirmed by comparison with measured data. Moreover, it can guide which RMMs should be applied for the safe use of methanol.

• 한국심리학회지 : 문화 및 사회문제
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• 제26권3호
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• pp.283-301
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• 2020

한국사회에서는 인터넷 커뮤니티와 게시글 댓글 상에서 여성혐오 단어가 생성되고 확산되고 있다. 본 연구는 여성혐오 단어에 대한 노출 정도가 개인이 가지는 여성혐오 태도에 미치는 영향을 알아보기 위해 실시되었다. 연구 1에서는 설문을 통해 여성혐오 단어의 노출 정도(알고 있는 여성혐오 단어 수, 인터넷 댓글을 보는 정도)와 명시적 여성혐오 태도 간의 관계를 알아보았다. 그 결과 혐오단어 노출이 많을수록 명시적 여성혐오 태도는 감소하였는데 이는 남성에게서 더 두드러지게 나타났다. 이는 부정적 미디어 자극에 대한 반복적 노출로 인한 자극 둔감화로 설명될 수 있다. 연구 2에서는 실험을 통해 여성혐오 단어의 노출 여부를 조작하고 암묵적 연합검사를 통해 암묵적 여성혐오 태도 간의 관계를 알아보았다. 집단 간 분산 분석 결과 남성의 경우 여성에 비해 혐오단어에 노출될수록 암묵적 여성혐오 태도가 더 강한 것으로 나타났다. 본 연구의 결과는 여성혐오 태도에 있어 명시적 태도와 암묵적 태도 간의 차이를 보여주며, 혐오단어에 대한 동일한 수준의 노출 정도가 남성과 여성의 태도 변화에 미치는 영향이 다를 수 있음을 시사한다.

• 디자인학연구
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• 제18권4호
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• pp.205-214
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• 2005

이 연구의 목적은 미디어 채널의 관점에서 효율적인 마케팅 전략 방안을 수립할 것인가를 사례연구를 이용하여 체계적으로 분석하고자 하는 것이다. 과거의 연구 결과들을 보면 기업의 이미지를 묘사하는 TV, 신문, 라디오, 잡지 등의 미디어는 소비자들의 선호도, 전문성, 신뢰성으로 구성된 브랜드 행위에 중요한 영향을 미친다는 것을 보여 주었다 즉, 기업은 효율적인 홍보 방안을 수립하기 위하여 체계적인 미디어 선택 전략을 지녀야 한다. 이러한 점을 고려하여 본 논문에서는 계층회귀분석을 실시하여 실증적인 분석을 시도하였다. 결과적으로 기업 홍보 전략을 수립 할 때 TV와 라디오는 소비자들에게 기업의 긍정적인 선호도를 증진하는데 신문과 잡지보다 뛰어나고, 신문과 잡지는 기업의 전문성을 증진하는데 유용하다는 것을 보여 주었다. 그리고 신문과 잡지는 기업의 신뢰도를 향상시키는데 TV와 라디오보다 뛰어난 매체임을 보여 준다. 이 결과는 영상매체가 흥미를 보다 유발하고, 지면 매첸가 신뢰성을 더욱 유발한다는 기존의 이론과도 일치되는 것으로 밝혀졌다.

• 한국환경보건학회지
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• 제43권4호
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• pp.307-313
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• 2017

Objectives: Chemicals derived from various environment media contaminates food across the food supply chain. In Korea, levels of contaminants in food have been sporadically measured by monitoring programs of different government agencies. There is difficulty with data compilation and integrated analysis across media. Therefore, the aim of this study was to propose an overall integrated database and analytical platform design for the 'ECO-FOOD NET (Environmental COntaminant reduction platform for FOOD through an interagency collaboration NETwork)', a tool to support the reduction of environmental contaminants in food. Methods: We developed a new data structure and standardized protocols for the compilation of integrated data. In addition, we conducted subject-oriented logical and physical relational database modeling and created the architecture design of the platform. Results: We established a standardized code system related to exposure media and route, analysis method and food matrix. In addition, we designed the seven software modules of 'About the System', 'Introduction to Interagency Work', 'Media-Chemicals Profiles', 'Method Bank', 'Monitoring Data Base', 'Integrated Media Analysis', and 'Risk-Benefit Analysis'. Conclusions: This study will contribute to decision-making as a tool for executing risk management, such as sustainable reduction policies of contaminants in food.

• 디지털융복합연구
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• 제9권1호
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• pp.89-106
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• 2011

With the development of the Internet, the media market is experiencing rapid change. The traditional form of offline newspaper markets, which has created the mainstream news delivery market, have been losing large amounts of power due to the emergence of online media. On the other hand, online media armed with its ability to post breaking news almost as it occurs has increased its influence and popularity at a rapid speed. However, since the exposure time and readership of online newspapers are less than their offline counterparts online media has a high dependence on sensational titles and somewhat exaggerating headlines rather than the objective and recapitulative headlines which are preferred. This paper will examine the function and significance of headlines, and conduct a comparative analysis on contents and forms of the headlines in offline newspaper and online newspaper in order to identify the characteristics of each newspaper. Through comparisons, it examines the types of headlines and the transference of headlines. In addition, it examines the differences in recognition of copy editors according to media in determining the headline, and it illuminates which type of headlines is preferred in order to instigate readers to read online newspapers. The analysis results of title-transferring cases in offline newspaper and online newspapers are that offline newspapers try to convey the contents accurately by making use of an information-transferring headline, while attention-attracting headline or subject-hiding headlines tend to be used for attracting the eye of readers. In addition, analysis results of headlines that are put on the top with a click counts in online newspapers are that attention-attracting headlines are the majority, while subject-hiding headlines that are hardly used in offline newspapers, are well-used in online newspapers. In an interview with copy editors, they responded that offline editors focus on the fact-transference in determining the title, while online editors put the weight on immediacy in the delivery of news and the function of guiding readers.

• 한국발생생물학회지:발생과생식
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• 제27권4호
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• pp.213-220
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• 2023

Previously, we showed that a chronic-low-dose nonylphenol (NP) exposure resulted in histological changes with sexually dimorphic pattern in rat adrenal glands. We hypothesized that such structural changes are closely related to the hormonal secretory patterns. To test this hypothesis, we developed the short-term adrenal incubation method, and measured the levels of catecholamines and cortical steroids using the high-performance liquid chromatography with electrochemical detection (HPLC-ECD) and specific enzyme-linked immunosorbent assay, respectively. The norepinephrine (NE) levels in media from NP-treated female adrenal, except 100 pM NP, were significantly increased [control (CTL) vs 1 nM NP, p<0.001; vs 10 nM NP, p<0.05; vs 100 nM NP, p<0.001; vs 1 µM NP, p<0.01]. The NE secretion from male adrenal was higher when treated with 100 nM and 1 µM NP (CTL vs 100 nM NP, p<0.05; vs 1 µM NP, p<0.05, respectively). The aldosterone level in the female adrenal media treated with 100 pM NP was significantly decreased, on the other hand, that of media treated with 10 nM NP was significantly increased (CTL vs 100 pM NP, p<0.05; vs 10 nM NP, p<0.01). In male adrenal media, the aldosterone levels of 10 nM, 100 nM and 1 µM NP-treated media were significantly declined (CTL vs 10 nM NP, p<0.001; vs 100 nM NP, p<0.001; vs 1 µM NP, p<0.001). These results showed the NP treatment altered secretory pattern of aldosterone from adrenals of both sexes, showing sexual dimorphism. It may be helpful for understanding possible adrenal pathophysiology, and endocrine disrupting chemicals-related sexually dimorphic phenomena in adrenals.

• 대한환경공학회지
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• 제36권8호
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• pp.588-595
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• 2014

탄소나노물질은 대표적인 나노물질로써, 풀러렌, 탄소나노튜브, 그래핀 등을 포함한다. 탄소나노물질은 다양한 분야에서 널리 이용되고 있는데, 생산, 사용, 처리 등의 단계에서 환경에 노출될 수 있고, 일단 노출이 되면 다양한 계로 확산되어 여러 생태학적 수용체에 큰 위협이 될 수 있다. 탄소나노물질이 토양환경에 노출되었을 때, 물의 흐름을 따라 토양을 통과하여 지하수에 노출될 가능성 여부를 판단하기 위하여 연구들이 진행되고 있다. 토양이 탄소나노물질의 이동을 제한하는 역할을 잘하는 것으로 판단될 경우에는, 탄소나노물질의 지하수 노출 가능성이 상당히 낮아질 것이다. 본 논문에서는 최근까지 토양 매질체에서 탄소나노물질의 이동과 관련하여 수행된 연구들을 정리하였다. 또한, 이러한 연구들을 통해 알려진 탄소나노물질의 이동에 영향을 미치는 인자들을 제시하였다. 그리고, 탄소나노물질의 이동을 모사하는데 이용되는 DLVO이론, 콜로이드 여과이론 그리고 이동모델을 제시하였다. 최근, 국내에서도 탄소나노물질의 생산과 상업적, 환경적 이용이 급속히 증가하고 있다. 따라서, 국내에서 생산되고 유통되는 탄소나노물질의 토양환경에서 이동에 관한 연구들이 향후에도 다양한 토양 환경조건에서 수행되어야 할 것으로 보인다.