• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권8호
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• pp.2083-2100
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• 2023

The rise of Industry 5.0 has led to a smarter and more digital way of doing business, but with it comes the issue of user privacy and security. Only when privacy and security issues are addressed, will users be able to transact online with greater peace of mind. Thus, to address the security and privacy problems associated with industry blockchain technology, we propose a privacy protection scheme for online financial transactions based on verifiable ring signatures and blockchain by comparing and combining the unconditional anonymity provided by ring signatures with the high integrity provided by blockchain technology. Firstly, we present an algorithm for verifying ring signature based on distributed key generation, which can ensure the integrity of transaction data. Secondly, by using the block chain technique, we choose the proxy node to send the plaintext message into the block chain, and guarantee the security of the asset transaction. On this basis, the designed scheme is subjected to a security analysis to verify that it is completely anonymous, verifiable and unerasable. The protection of user privacy can be achieved while enabling online transactions. Finally, it is shown that the proposed method is more effective and practical than other similar solutions in performance assessment and simulation. It is proved that the scheme is a safe and efficient online financial transaction ring signature scheme.

• 한국콘텐츠학회논문지
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• 제21권4호
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• pp.615-627
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• 2021

코로나19로 말미암아 언택트(Untact) 시대가 도래하였다. 코로나 바이러스의 위협 가운데서 대면이 힘들어 졌기 때문에 온라인이 발달할 수밖에 없다. 이런 시대 가운데 하나님께 드리는 예배조차도 온라인으로 드리게 되었다. 온라인에 가장 익숙한 세대인 청소년들은 온라인 예배에 쉽게 적응하는 모습을 보인다. 포스트 코로나 시대에도 온라인 청소년 예배는 계속될 것으로 전망된다. 그렇다면 과연 온라인 청소년 예배가 가능한지에 대한 신학적 성찰이 필요하다. 신학적 성찰을 통해 온라인 청소년 예배에 대한 신학적 정당성을 확인하고, 좀 더 나은, 좀 더 바른 온라인 예배가 될 수 있도록 노력해야 한다. 청소년들의 눈높이에 맞춘 온라인 예배, 청소년들의 영적인 필요를 채워주는 온라인 예배가 기획되고, 준비되고, 시행되어야 한다. 본 논문은 예배의 정의, 예배의 요소, 예배의 장, 예배의 역사를 살펴보면서 온라인 청소년 예배에 대한 신학적 정당성을 살펴보았다. 그리고 청소년기의 특성을 살펴보면서 온라인 청소년 예배가 왜 중요하고 필요한지를 제시하였다. 그다음 지금 각 교회에서 진행하고 있는 온라인 예배보다 더 발전되고 바른 온라인 청소년 예배를 기획하기 위해 온라인 청소년 예배의 목적과 내용, 방법에 대해 살펴보면서 온라인 청소년 예배의 실제를 제시하였다.

• 한국컴퓨터정보학회논문지
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• 제27권2호
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• pp.91-98
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• 2022

본 연구의 목적은 COVID -19 상황에서 온라인 기초임상실습이 간호대학생의 비판적 사고성향, 자기결정성 동기 및 실습만족도에 미치는 효과를 파악하고자 시행되었다. 본 연구는 단일군 사전·사후설계이다. 연구 대상자는 G시에 소재한 간호학과 3학년을 대상으로 온라인 설문지를 이용하여 수집하였고 41명이 최종 참여하였다. 연구결과 비판적 사고성향(t=-2.60, p=.013)과 자기결정성동기(t=-2.84, p=.007)는 통계적으로 유의하게 상승했다. 이 결과는 온라인 기초임상실습이 비판적사고성향, 자기결정성 동기 향상에 효과가 있음을 의미한다. 최근 COVID-19 의료현장에서의 직접간호수행이 어려운 만큼 다양한 온라인 콘텐츠를 활용한다면 온라인 임상실습의 한계를 극복할 수 있을 것으로 기대된다.

• 정보관리학회지
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• 제40권4호
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• pp.123-145
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• 2023

공공도서관은 코로나19 팬데믹 동안 오프라인 서비스의 대체재로 많은 양의 온라인콘텐츠를 생산하고 이용자에게 제공하였다. 본 연구의 목적은 포스트 팬데믹 시기인 지금에도 공공도서관에서 이루어지는 온라인콘텐츠의 전반적 관리현황을 분석하고, 관리방법을 개선하기 위한 방법적 토대를 제공하는 것이다. 이에, 본 연구는 서울·경기도 지역의 공공도서관 중 305개 도서관의 기관대표와 담당자에게 설문하여 온라인콘텐츠 생성, 서비스, 보존까지의 전반적 관리에 대한 실태를 파악하였고, 온라인콘텐츠 생산 및 관리에 대한 사서들의 인식을 분석하였다. 그 결과, 팬데믹 이후에도 공공도서관은 홍보 및 전달의 효율성을 가진 온라인콘텐츠를 생산하고 도서관 홈페이지와 소셜미디어를 통하여 활발히 제공하고 있음을 알 수 있었다. 또한, 사서들은 공공도서관에서 생산된 온라인콘텐츠를 '도서관 자원으로서 가치'가 있다고 인식하고 있었으며 앞으로도 더 많이 생산될 것임을 예측하였지만, 전문가적 역량의 부재와 업무부담으로 생산과 관리에 어려움을 겪고 있음을 파악하였다. 장기적인 관점에서 사서들은 주요 온라인콘텐츠 관리가 이루어져야 함을 인지하고 있었다. 온라인콘텐츠는 공공도서관 서비스 패러다임의 전환을 이끌고 있고, 온라인콘텐츠의 활성화를 위한 관심과 노력이 공공도서관의 선택이 아닌 필수인 것이다.

• Child Health Nursing Research
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• 제26권2호
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• pp.267-276
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• 2020

Purpose: Caring for a vulnerable premature baby is a challenging task, but some mothers experience growth through that process. The purpose of this study was to investigate the factors influencing post-traumatic growth in mothers with premature infants admitted to the neonatal intensive care unit. Methods: A correlational research design was used and 105 mothers of premature infants were recruited from an online community. Data were collected from January 15 to January 25, 2019. Post-traumatic growth was measured using the Korean version of the Posttraumatic Growth Inventory. Data were analyzed using descriptive statistics, the t-test, analysis of variance, the Scheffé test, Pearson correlation coefficients, and hierarchical multiple regression. Results: The final model developed in this study explained 45.5% of post-traumatic growth (F=13.66, p<.001). Resilience (β=.54, p<.001) was the strongest predictor of post-traumatic growth, followed by the age of the mother when giving birth (β=.17, p=.028) and current employment status (β=.17, p=.049). Conclusion: For mother with premature infants to grow psychologically after their experience, it may be needed to support them to develop and strengthen their resilience through either education or their own support network.

• 한국문헌정보학회지
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• 제40권4호
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• pp.33-61
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• 2006

본 연구는 성균관대학교에서 교양과목으로 실시하고 있는 온라인 정보문해 2학점 과목의 교육 효과 및 만족도를 평가하고자 하였다. 이를 위해 쌍방향 온라인 튜토리얼 방식으로 정보문해 교수 학습안을 구안하였으며, 2006년 1학기 정보문해 과목의 수강생 284명 중 9개 계열 251명의 정보문해 교육 사전 사후 테스트 결과와 246명의 학기말 강의 평가결과를 분석하였다. 연구결과 5개의 일반적인 정보문해 능력이 모두 향상됨으로써 온라인 정보문해 과목의 교육 효과가 높은 것으로 나타났으나 계열에 따라 교육 효과에 차이가 있었다. 그리고 온라인 정보문해 과목의 교육 내용과 구성에 대해 비교적 높은 만족도를 나타내었다. 따라서 정규 교양과목으로서 온라인 정보문해 교육은 대학생에게 일반적인 정보문해를 가르치기 위한 매우 효과적인 방법임이 밝혀졌다.

• 지역사회간호학회지
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• 제12권3호
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• pp.795-814
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• 2001

To evaluate the effect of sex education on middle school students' access to the obscene online computer and video film contents. 154 students were selected as experimental group. and 154 students were selected as control group, sampled randomly from Andong. Kyungbook, Korea. An analysis was performed. A non-equivalent control group pre test-post test research design was used. The data were collected from April 2nd to April 19th. 2001. A pre-survey was done on general characteristics and the condition of accessing obscene online computer and video film contents on both experimental and control group. From the survey results information. sex education contents were put together. The researcher organized 3 ready-made sex education program and explained to the four school health nurses about the ready-made sex education program step by step and they educated their selected students with three classes of 45 minutes lecture. Two weeks after the last lecture, a post-test was conducted. Four weeks from the last lecture, another post-test was conducted. The existing studies by Choi Yongseon(1998) and Kim Hyeok(1998) were reviewed and two professors in the department of community health nursing advised on the study questionnaire writing. An SPSS Win 10.0 was used. The data of respondents' general characteristics were analyzed using frequency and percentage. $X^2$ test was used to verify the homogeneity of the experimental group and the control group. Repeated Measures ANOVA was used to find out whether sex education had an effect on the awareness of obscene online computer and video film contents and under-age prostitution through the online computer networks. and time and frequency of access to the obscene online computer and video film contents. The results of the study are as follow. 1. The results of the verification of homogeneity between the experimental group and the control group showed that there was no significant difference between the experimental group and the control group. 2. The first hypothesis, 'the experimental group which received sex education would have a higher level of awareness of accessing obscene contents than the control group which did not receive the education' was supported at p<0.0001. 3. The second hypothesis. 'the experimental group which received sex education would have a higher level of awareness of underage prostitution on computer networks than the control group which did not receive the education' was supported at p<0.05. 4. The third hypothesis, 'the experimental group which received sex education would spend time less accessing obscene video and computer contents than the control group which did not receive the education' was rejected at p>.05. 5. The 4-1 hypothesis. 'the experimental group which received sex education would access obscene computer contents less frequently than the control group which did not receive the education' was supported at p<0.0001. 6. The 4-2 hypothesis, 'the experimental group which received sex education would access obscene video contents less frequently than the control group which did not receive the education' was supported at p<0.0001. In conclusion, a systematic step-by-step sex education program should be developed to protect middle school students from the harmful online computer and video film access. An effective teaching material for sex education should be prepared to decrease middle school students' access to obscene online computer and video film contents.

• International journal of advanced smart convergence
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• 제9권3호
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• pp.260-271
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• 2020

Smartphones provide blind users with screenreader as an accessibility tool. However, blind users often experience difficulties accessing online shopping malls via smartphones due to their inconsistent and image-based layouts. To enable screenreader users to get access to the detailed information about products while they are shopping online, we have developed BarrierFreeShop, an accessible mobile shopping application for people with visual impairments. BarrierFreeShop has three accessibility features: (1) layout automation, (2) review summarization, and (3) optical character recognition. We conducted a user study with 80 participants with visual impairments where they were asked to use BarrierFreeShop for a month. The findings revealed the effectiveness of our app in terms of speed and post interview feedback. We have also discovered typical shopping experiences that participants had during the test. This research suggests that computer vision technologies can improve accessibility issues in online shopping malls. In addition, we have confirmed that extracting contents from images help people with visual impairments to get better access to product information.

• 대한치과기공학회지
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• 제42권4호
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• pp.402-408
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• 2020

Purpose: To understand the students' level of recognition of online classes in the Department of Dental Technology and to provide the basic data for designing online classes based on the dental technology course. Methods: A survey was conducted among the students of the dental technology department. The collected data was analyzed with the SPSS ver. 25.0 program. To ensure a reliable verification, the α=0.05 significance level was used. The t-test and analysis of variance were also performed. Results: The students' level of recognition of online classes in the Department of Dental Technology is shown in the rate of recognition for video-based classes for both the theory and experiments. Students displayed high positivity with the video-based learning as it is repeated learning that is not affected by the limitations of time. In addition, video-based learning is highly beneficial in terms of convenience, satisfaction, and achievement for learning. Conclusion: Based on the results, video-based learning is a highly positive learning type for students. It was also recommended that the Department of Dental Technology should offer a post-COVID-19 online class to include the blended methods of a face-to-face class and video-based learning.

• 트랜스-
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• 제10권
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• pp.15-29
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• 2021

코로나 팬데믹 이후, 전염병의 창궐 속에서 개인의 건강과 안녕을 위한 수단으로 '언택트 경제' 비대면 경제활동이 주요 이슈가 되면서, 쿠팡, 마켓컬리 같은 온라인 마켓이 생필품을 구매하기 위한 주요 수단으로 부상했다. 이처럼 코로나가 야기한 집합과 국가간 이동제한은 사회 전반적인 활동에 지대한 영향을 미쳤으며 사람들의 행동 방식과 소비습관, 나아가서는 라이프 스타일에까지 큰 변화를 불러왔다. 미술시장 역시 많은 변화를 맞이했다. 집합의 제한, 국가간 이동의 제한 상황 발생은 미술시장 규모에 일차적으로 타격을 입혔으며 나아가 작품이 거래되는 방식, 거래되는 작품의 특성, 작품을 구매하는 사람에게 까지 영향을 미치고 있다. 본 논문에서는 코로나가 미술시장에 미친 영향을 온라인 미술시장 중심으로 살펴보고, 앞으로 야기할 변화와 대응방식을 모색해보고자 한다.