• 지식경영연구
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• 제22권3호
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• pp.129-149
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• 2021

사회적 위계서열에 대한 연구는 최근 경영 및 조직연구에 있어 관심이 증가하는 연구 주제이다. 하지만 팀내 사회적 위계서열에 관한 연구가 풍부함에도 불구하고 팀원 간의 지위 불일치(Status disagreement)에 관한 연구는 거의 존재하지 않는다. 특히 지위 불일치가 팀 성과에 영향을 미치는 팀원들의 공헌도를 감소시키는 이유와 메커니즘에 대한 이해가 부족한 편이다. 본 연구는 팀원 간의 지위 불일치는 지식공유를 감소시키고 지식은폐를 증가시켜 결과적으로 지식 공헌도를 감소, 팀 성과에 부정적인 영향을 미친다고 제안하였다. 또한, 팀 특성 중 하나인 기술(Skill) 차별화는 지위 불일치의 부정적인 영향을 더욱 악화시킬 수 있다고 제시하였다. 본 연구는 선행 연구를 토대로 지위 불일치, 지식공헌, 그리고 팀성과에 관련된 명제를 제안하고 시사점 및 향후 연구 방향 등에 관한 추가 논의를 진행하였다.

• 한국농공학회지
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• 제45권6호
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• pp.183-193
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• 2003

Most construction works on the soft ground adopt instrumentation to manage settlement and stability of the embankment. The rapid progress of the information technologies and the digital data acquisition on the soft ground instrumentation has led to the fast-growing amount of data. Although valuable information about the behaviour of the soft ground may be hiding behind the data, most of the data are used restrictedly only for the management of settlement and stability. One of the critical issues on soft ground instrumentation is the long-term settlement prediction. Some observational settlement analysis methods are used for this purpose. But the reliability of the analysis results is remained in vague. The knowledge could be discovered from a large volume of experiences on the observational settlement analysis. In this article, we present a database to store settlement records and data mining procedure. A large volume of knowledge about observational settlement prediction were collected from the database by applying the filtering algorithm and knowledge discovery algorithm. Statistical analysis revealed that the reliability of observational settlement analysis depends on stay duration and estimated degree of consolidation.

• 전자공학회논문지
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• 제51권10호
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• pp.118-127
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• 2014

DNA 데이터 저장(Data storage)은 DNA의 염기 서열에 대용량의 디지털 데이터를 저장하는 방법으로, 차세대 정보 저장 매개물로 인식되고 있다. 본 논문에서는 DNA 스테가노그라픽 기반으로 비부호 DNA 서열(Noncoding DNA sequence)에 정보를 저장하는 방법을 제안한다. 제안한 방법은 암호화된 데이터들을 정수 변화표에 의하여 데이터 염기 서열로 변환한 후, 시드 정보, 및 섹터 길이로 구성된 은닉 키에 의하여 비부호 염기 서열에 은닉한다. 따라서 단백질의 유전 기능이 유지되고, 원 DNA 서열없이 정보가 검출되며, 변이에 의하여 발생되는 오류가 검출된다. 기존 방법과의 비교 실험을 통하여 제안한 방법이 높은 bpn를 가지는 저장 효율을 가지며, 패리티 염기에 의하여 은닉된 정보의 오류 위치를 검출할 수 있음을 확인하였다.

• International Journal of Knowledge Content Development & Technology
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• 제7권4호
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• pp.27-50
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• 2017

The impact of social networking is varied from good to bad. Online activities have also been categorized into pros and cons of social networking, either as reported as hiding Internet activities among teenagers or killing loneliness among elderly. In terms of relationships, there have been argument over its closeness and quality of an online relationship in Internet settings. Looking at the contradiction in an innovative interaction between classic community communication and social media, there is an unknown scent of the future struggling and challenging both human communication and relationships in the presence of digital culture. This research uses Diffusion of Innovation to study the wide and continuous spread of digital culture in human communication; and, Media Dependency in learning and structuring the cognitive, affective and behavioral effects of social media on each person uses the media in different ways. This research will be using online survey to gain opinions from a social network site as an update of views and reflection of self-awareness to all levels of people. Social media like Facebook (FB) is perceived as a good tool of communication that it is able to bring closeness among the family members. The results show that social media like FB brings positive impact towards family members; it would help to build a better and harmonic society; and, relationships among family members and communication shall be improved and enhanced to the level of a united society.

• Asian-Australasian Journal of Animal Sciences
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• 제29권2호
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• pp.280-287
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• 2016

Foot and mouth disease (FMD) has a long history in Sri Lanka and was found to be endemic in various parts of the country and constitutes a constant threat to farmers. In Sri Lanka, currently there is no regular, nationwide vaccination programme devised to control FMD. Therefore, improving farmers' knowledge regarding distinguishing FMD from other diseases and ensuring prompt reporting of any suspicion of FMD as well as restricting movement of animals are critical activities for an effective FMD response effort. Therefore, the main purpose of this study was to clarify the relationship between farmers' knowledge levels and their behaviors to establish a strategy to control FMD. In our study, item count technique was applied to estimate the number of farmers that under-report and sell FMD-infected animals, although to do so is prohibited by law. The following findings were observed: about 63% of farmers have very poor knowledge of routes of FMD transmission; 'under-reporting' was found to be a sensitive behavior and nearly 23% of the farmers were reluctant to report FMD-infected animals; and 'selling FMD-infected animals' is a sensitive behavior among high-level knowledge group while it is a non-sensitive behavior among the low-level knowledge group. If farmers would understand the importance of prompt reporting, they may report any suspected cases of FMD to veterinary officials. However, even if farmers report honestly, they do not want to cull FMD-infected animals. Thus, education programs should be conducted not only on FMD introduction and transmission, but also its impact. Furthermore, consumers may criticize the farmers for culling their infected animals. Hence, not only farmers, but also consumers need to be educated on the economic impact of FMD and the importance of controlling an outbreak. If farmers have a high knowledge of FMD transmission, they consider selling FMD-infected animals as a sensitive behavior. Therefore, severe punishment should be levied for selling FMD-infected animals.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권12호
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• pp.4024-4041
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• 2022

Robust reversible watermarking has attracted widespread attention in the field of information hiding in recent years. It should not only have robustness against attacks in transmission but also meet the reversibility of distortion-free transmission. According to our best knowledge, the most recent robust reversible watermarking methods adopt a single image as the carrier, which might lead to low efficiency in terms of carrier utilization. To address the issue, a novel dual-image robust reversible watermarking framework is proposed in this paper to effectively utilize the correlation between both carriers (namely dual images) and thus improve the efficiency of carrier utilization. In the dual-image robust reversible watermarking framework, a two-layer robust watermarking mechanism is designed to further improve the algorithm performances, i.e., embedding capacity and robustness. In addition, an optimization model is built to determine the parameters. Finally, the proposed framework is applied in different domains (namely domain-independent), i.e., Slantlet Transform and Singular Value Decomposition domain, and Zernike moments, respectively to demonstrate its effectiveness and generality. Experimental results demonstrate the superiority of the proposed dual-image robust reversible watermarking framework.

• 한국정보처리학회논문지
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• 제7권12호
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• pp.3885-3895
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• 2000

디지털 이미지 기법과 디지털 네트웍의 출현으로 예술적 작품의 복사가 더욱 쉬워지고 있다. 이러한 창작품을 보호하기 위해 데이터 안에 저작권을 표시할 수 있는 표식이나 인식 가능한 데이터를 삽입하는 기술이 필요해지고 있고 지난 몇 년간 디지털 이미지나 오디오, 비디오 등의 멀티미디어 데이터에 저작권을 표시하기 위한 데이터나 기타 다른 정보를 삽입할 수 있는 많은 기법들이 제안되어 왔다. 본 논문에서는 이미지의 주파수 영역에 인식 가능한 패턴을 삽입하고 추출하는 워트마킹 기법을 제안한다. 또한 삽입된 워터마크를 원본이미지의 정보 없이 추출할 수 있도록 하여 임의의 사람이 워터마크 된 이미지로부터 가짜원본을 생성하는 것이 어렵도록 한다. 원본정보 없이 워터마크를 추출하기 위해서 화소의 원래 값을 예측하는 방법을 사용한다. 예측기법은 구하고자 하는 화소의 주위값을 평균한다는 것을 의미한다. 부가적으로 워터마크를 이미지 주파수 영역에 삽입함으로써 JPEG같은 손실압축바업에도 견딜 수 있도록 한다.

• 한국의사학회지
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• 제27권2호
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• pp.121-126
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• 2014

The purpose of this paper is to report a newly discovered book whose title is Ikkam (翼鑑) and prepare for a full-scale study. The book, Ikkam, has a variety of contexts in which it seems to be written by Park Ji-won. First, 'Sanin' in 'Yeonam-Sanin' is consistent with the behaviors of Yeonam Park Ji-won who lived in hiding in the Yeonam valley in 1777. In addition, many statements written in the introduction, such as "as we stick to the old things, we do not know a makeshift", "we are well versed in changes" and "many soldiers are not always good" remind us of other writings of Park Ji-won. Moreover, he writes the statements using antithesis. It is the force of writing style of a literary person who is not engaged in medical service. In addition, he puts six qi in the introduction, but it is not as sophisticated as Jejungsinpyeon (濟衆新編). It suggests that this book may be published earlier than Jejungsinpyeon. When comparing Ikkam with Euimunbogam (醫門寶鑑) and Jejungsinpyeon, it seems common to place six qi in the introduction at the time. In addition, through this book, we find that Park Ji-won known as a writer of Geumryosocho (金蓼小抄) has fairly much knowledge in the medicine. We can estimate his passion and depth about the medicine through a longing for a new medical book shown in the introduction of Geumryosocho. However, various approaches to similar disease symptoms shown in the introduction help us to recognize his true qualities in the medicine. In addition, like other experience prescriptions, this book excludes prescriptions using medicinal herbs with toxicity or rare medicinal herbs in the situation with a limited supply of them in remote areas but includes prescriptions which are widely used. It shows that experience prescriptions in the Joseon Dynasty are effective to specifically identify medicinal herbs and prescriptions which are widely used in Korea. These values cannot be compensated by Donguibogam (東醫寶鑑) which has an infinite value.

• Safety and Health at Work
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• 제10권3호
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• pp.260-264
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• 2019

Background: Professional dance is a physically demanding career path with a high injury prevalence, yet an ingrained culture of hiding or pushing through injuries. Developing better knowledge surrounding the cultural beliefs and behaviors related to injury reporting is critical to understand their incidence and burden. Therefore, the aim of this study was to investigate injury fear and injury reporting behaviors in professional dancers in Australia. Methods: This study utilized data collected in a cross-sectional survey of professional dancers in Australia. Descriptive analysis of injury fear and reporting stigma are presented with comparisons between subgroups (full-time versus part-time dancers; men versus women) conducted using two-sided Fisher's exact tests. Results: A total of 146 professional dancers were included. Over half (63%) of the respondents reported that they fear sustaining a dance-related injury, that they believe there is still a stigma surrounding injuries in dance (62%), and that this stigma has led to a delay in reporting or seeking care for an injury (51%). A lower proportion of part-time than full-time dancers reported that they would usually tell someone within their dance employment about an injury (35.1% vs. 59.6%, p = 0.006). Conclusion: Professional dancers are at risk of losing contracts or roles if they are injured, and therefore, it is common to dance through their occurrence. Many dancers, particularly those dancing part-time, are unwilling to tell their employers about their injuries. Action is required to improve this culture regarding injury reporting and help seeking for more effective injury understanding, prevention, and management in dance.

• 영미문화
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• 제18권3호
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• pp.1-29
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• 2018

Nadine Gordimer's The Pickup, published in 2001, well shows how the social issues have been changed in a way to reflect the South African society which is more complicated in the post-apartheid era. Examining the two different geographical territories between Johannesburg, South Africa and an unnamed nation in Middle East, putting aside the domestic racism between white and black, she extends her issue of racial other to global one with new rising issue of immigration in South African society. It seems that Gordimer's such issue is well represented by two main characters: Julie Summers who comes from a wealthy family and falls in love with Abdu, an illegal immigrant who was born from a poor country in Middle East and is now working at a garage in a downtown of Johannesburg with hiding his real name Ibrahim ibn Musa. Having an official relationship with Ibrahim and joining the regular meeting at the El-Ay (L.A.) Cafe where all participants can enjoy the freedom of expression/speech except for Abdu, she begins to have interest in his silence and his presence, orientalized as the Arab Prince for her imagination. Arriving at Abdu 's nation later, she also keeps projecting the 'less civilized' images to his nation where there are only desert, uneducated people, and dirty houses and streets. In doing so, Gordimer leads reader to a never-ending issue of Orientalism in the Western literature. Moreover, the writer attempts to create a female-centered community at the male-centered Islam community by marginalizing the presence of Abdu who finally leaves to America alone. As Julie is successfully acculturated to the unknown Abdu's community, she begins to place herself at the center of the community and plays a role as a mediator/communicator who can change/civilize it with her western knowledge of language and culture. By replacing the male-centered with the female-centered through Julie, Gordimer seems to be creating an idealized community with the notion of matriarchy. However, Gordimer places Abdu as an unstable subject who has to endlessly move back and forth for his undetermined national and cultural identity while Julie achieves the determined identity in both nations.