• Journal of the Korean BIBLIA Society for library and Information Science
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• v.20 no.3
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• pp.97-114
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• 2009

The roles and services of a library have historically been influenced and developed by the change of information technologies. The ubiquitous technologies have been widely studied for medical area, construction, commerce, broadcasting, telecommunication and so on. The ubiquitous technologies have extended to the roles and services in a library. The development of ubiquitous IT, the roles and functions of a library and information center should be changed. To adjust evolving environment, this study focuses on concept and definition of ubiquitous computing and networks. Especially, with requirements and essential technologies which can be a technological infrastructure for ubiquitous life, library services and roles in ubiquitous life are discussed by literature review, case analysis and expert interview. With the results, this study proposes that library services and roles in ubiquitous life should be considered in two ways which are network and physical spaces. Also, roles of a library in ubiquitous life will be extended to culture and education center including traditional information center. To perform those roles and services, a library should develop various service programs relating culture and education such as personalized service and educational program.

• The Journal of Korean Academic Society of Nursing Education
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• v.29 no.4
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• pp.450-468
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• 2023

Purpose: This study aimed to conduct a qualitative synthesis of workplace bullying experiences among nurses in Republic of Korea. Methods: Following the PRISMA guideline, a literature search was conducted using seven domestic and three international databases. Studies published in Korean or English from inception to December 31, 2022 were included. A meta-aggregation approach suggested by the Joanna Briggs Institute was used to synthesize the research findings. Results: Fourteen studies were included in this review. As a result of a data analysis of the selected studies, 199 subthemes and supporting illustrations were identified and grouped into 36 related categories. Based on the subthemes and categories, five synthesized findings were developed: (1) the individual and organizational causes of workplace bullying; (2) the various types of physical violence and psychological harassment; (3) the negative impact of workplace bullying and its effect on self-growth; (4) active and passive coping efforts in dealing with bullying; and (5) strategies for preventing bullying incidents. Conclusion: Based on the synthesized findings, four recommendations were made: (1) improving the challenging working conditions for nurses; (2) enhancing educational programs for new nursing graduates; and (3) promoting proactive responses from nursing managers in conjunction with an expansion of resilience training for nursing students. Finally, to address the issue of workplace bullying, (4) multi-center and multi-level research involving nursing organizations needs to be conducted.

• Journal of Practical Engineering Education
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• v.15 no.3
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• pp.641-647
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• 2023

In the fintech environment, ensuring secure financial transactions with smartphones requires authenticating the device owner. Smartphone authentication techniques encompass a variety of approaches, such as passwords, biometrics, SMS authentication, and more. Among these, password-based authentication is commonly used and highly convenient for user authentication. Although it is a simple authentication mechanism, it is susceptible to eavesdropping and keylogging attacks, alongside other threats. Security keypads have been proposed to address vulnerabilities in password input on smartphones. One such innovation is a group keypad, resistant to attacks that guess characters based on touch location. However, improvements are needed for user convenience. In this study, we aim to propose a method that enhances convenience while being resistant to eavesdropping and recording attacks on the existing group keypad. The proposed method uses new signs to allow users to verify instead of the last character confirmation easily and employs dragging-to-touch for blocking recording attacks. We suggest diverse positioning methods tailored for domestic users, improving efficiency and security in password input compared to existing methods.

• The Journal of Korean Academic Society of Nursing Education
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• v.30 no.2
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• pp.182-191
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• 2024

Purpose: The purpose of this study was to explore the characteristics of social networks among registered nurses in acute nursing care units. Methods: This study used a survey design. Four nursing units from two acute hospitals were selected using a convenience method, and 83 nurses from those nursing units participated in the study in July 2022. The positive influences among nurses included friendship, collaboration, advice, and referent networks, and the negative influences included avoidance and bullying networks. Using the NetMiner program, the k-means clustering technique was applied to create groups of nodes with similar characteristics. The general characteristics of the participants were analyzed by mean, standard deviation, frequency, and ANOVA or chi-squared test. Results: As a result of dividing the 83 nurse participants into four clusters, positive influencers, silent peers, unwelcome peers, and active bullies were identified. Positive influence group nurses were frequently mentioned in the friendship, collaboration, advice, and referent networks. On the other hand, nurses in the unwelcome group and the active bullying group were frequently mentioned in the avoidance and bullying networks. Conclusion: Social networks that have a positive or negative impact on nursing performance are created through different relationships between nurses. Nurse managers can use the findings to create a more supportive and collaborative environment. Further research is needed to develop intervention programs to improve interactions and relationships between fellow nurses.

• Journal of Practical Engineering Education
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• v.16 no.3_spc
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• pp.327-332
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• 2024

The spread of smart phones provides users with a variety of services, making their lives more convenient. In particular, financial transactions can be easily made online after user authentication using a smart phone. Users easily access the service by authenticating using a PIN, but this makes them vulnerable to social engineering attacks such as spying or recording. We aim to increase security against social engineering attacks by applying the authentication method including imaginary numbers when entering a password at the door lock to smart phones. Door locks perform PIN authentication within the terminal, but in smart phones, PIN authentication is handled by the server, so there is a problem in transmitting PIN information safely. Through the proposed technique, multiple PINs containing imaginary numbers are generated and transmitted as processed values such as hash values, thereby ensuring the stability of transmission and enabling safe user authentication through a technique that allows the PIN to be entered without exposure.

• Journal of Korean Home Economics Education Association
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• v.32 no.3
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• pp.81-96
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• 2020

This study aims to identify implications for the role of home economics in consumer education in middle schools focusing on building consumer competency. To this end, the content in middle school textbooks of home economics and other subjects, written according to the 2015 revised curriculum, were analyzed. This study examined consumer education content based on the consumer competency measurement index developed by the Korean Consumer Agency, and reviewed different foci presented by subjects. This study also investigated how the knowledge, attitude and practice, which are components of consumer competency, are presented. The major findings of this study can be summarized as follows: First, consumer competency content, presented in textbooks of home economics and other subjects, were comprised of citizenship competency(65.3%), transactional competency(27%), and financial competency(7.7%). Second, in terms of content on the consumer's citizenship competency, little attention was paid to consumer rights, revealing an imbalance between responsibilities and rights. Third, despite its importance, the "utilization of information and communications technology" in transaction competency, and "consumer participation" in citizenship competency are insufficiently covered in the home economics. Fourth, social studies was the subject that most extensively covered the content of consumer competency. In terms of scope, home economics dealt with most of the sub-fields. Fifth, even when the same content of consumer competency was covered, it was presented differently by subject. Sixth, there was a lack of connection between components of consumer competency-knowledge, attitude, and practice, with a disproportionately high emphasis on knowledge. In conclusion, this study concluded that consumer education content of middle school subjects is insufficient to enhance consumer competency.

• 대한공업교육학회지
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• v.34 no.1
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• pp.87-112
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• 2009

The aim of this research is to suggest the model of reconstruction and remodelling of S high school of broadcast for converting into a specialized one in the section of broadcast industry. The method of reconstruction of the laboratories by each department is as follows. First, the names of laboratories, ground plans, and perspective drawings are designed according to the principle of constructionism. Second, each department is recommended to install 7 laboratories. For the department of broadcasting facilities, a laboratory of processing broadcasting machines, a laboratory of broadcasting machines, and a laboratory of screen picture machines are needed. For the department of broadcasting, electricity, and communication, a laboratory of image and sound edition, a laboratory of broadcasting and communication, a laboratory of broadcasting system, and a laboratory of stage illumination. For the department of broadcasting stage construction, a laboratory of broadcasting stage building, a laboratory of broadcasting stage design, a laboratory of broadcasting stage decoration and etc. Third, an office room is designed by department in the form of seminar room and places for practice is formed by department to be a laboratory. Fourth, a room for industrial-educational cooperation is installed by department, by which education of industrial-educational cooperation is carried out harmoniously. And one example of a remodeled laboratory by one department is shown with laboratory name, ground plan, perspective drawing, and running method. Especially employment of teachers working both school and business, professional club which is concerned with broadcasting technique, and attraction of enterprise in school is suggested as important elements to manage broadcasting laboratories efficiently. Finally, it is desirable for us to attract private capital, that is, Build-Transfer-Lease(BTL) because much budget is required for purchasing the broadcasting equipments and remodelling the laboratories to succeed as specialized high school on broadcasting section.

• Information and Communications Magazine
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• v.30 no.5
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• pp.79-87
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• 2013

실감 미디어(Realistic Media)란 사용자 만족을 위해 몰입감과 현장감을 극대화 할 수 있도록 현장의 모든 감각의 정보를 전달하는 매체를 의미하며 실감미디어 기술은 고품질의 시각, 청각 정보는 물론 촉감 등 다감각 정보의 생성, 처리, 저장, 변환, 전송, 재편등에 관한 기술로 정의할 수 있다. 무선 네트워크 기술의 발전과 스마트폰 시장의 급격한 성장에 따라 다양한 실감미디어 서비스들이 출현하고 서비스되고 있어 실감미디어 산업은 국내 뿐만 아니라 세계적으로 급격하게 성장하고 있다. 우리 정부에서는 미국, 일본, 유럽 등의 기술을 따라잡고 독자적인 기술력을 마련하기 위하여 '기가코리아(2012)' 사업을 필두로 다양한 정책 사업을 진행 중에 있는대 현 시점에서는 해외 기술에 비하여 2-3년의 격차가 존재하고 있으나 무선 인프라, 스마트폰 기반의 콘텐츠 시장 형성 등 기반 인프라가 우수하고 방송, 교육, 광고, 공공 서비스 등 타 산업분야와 융복합 등 기반 기술 확보부분에서 기술 선점 가능성이 남아있으며 다양한 분야로 사업 확대가 용이하여 시장성이 높아 차세대 전략 산업으로 주목받고 있다. 최근 미디어 서비스에 대한 사용자의 요구사항 변화는 단순 시청의 단계를 넘어 미디어 미디어 서비스의 부가 정보를 얻고자 하며 직접 미디어 서비스에 참여하기를 원한다. 특히 실감미디어 분야에서 2D 미디어에서도 3D 입체 미디어화가 급속도로 진행되고 있으며 3D 입체 미디어를 기반으로 실감체험을 가능하게 하는 4D미디어를 선호한다. 대표적인 사례가 아바타 4D 영화의 흥행이라고 볼 수 있다. 앞으로도 4D 미디어를 소화해낸 사용자는 오감과 감성에 기반한 미디어 서비스를 지속적으로 요구할 것이며 이러한 요구에 맞추어 실감미디어 산업의 빠른 변화가 진행되고 있다. 이미 영화 산업은 3D 산업으로 진입해 있으며 4D 산업으로 급속히 변모중에 있고 스마트 시장의 등장에따라 스마트 기기 및 인프라를 기반으로 실감미디어를 제공하는 서비스 시장 역시 급속도로 성장하고 있다. 이에 본고에서는 실감미디어 산업의 시장규모와 앞으로 어떻게 발전할 것인지를 알아보며, 어떠한 형태의 실감미디어 콘텐츠 서비스가 존재하고 있는지 알아보고자 한다. 또한 국내외에서 적용되는 실제 사례를 분석하고, 마지막으로 실감미디어 콘텐츠 산업의 경쟁력 강화를 위한 시사점을 제시하고자 한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.4
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• pp.71-78
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• 2015

Since most education organizations such as Universities have a plenty of PCs, much electric power can be wasted if their power states are not managed properly. This paper introduces the RPM(Remote Power Management) software system implemented to reduce a waste of PC power in Universities. The System manager can monitor power state of all PCs in a University and turn off PCs or change power states of PCs to low power states. The RPM consists of three software modules. First, Power Controller, which is installed in each user PC, saves the power by changing low power state by utilizing low power algorithm proposed in this paper. Also it reports power state of its PC to Power Server on the state changed. Second, Power Server module gathers power state information of all PCs, stores them in a DB, and sends all or some parts of the information to Power Viewer whenever the manager asks. The manager can turn off or change a certain PC to low power state. We evaluated the performance of power saving for the RPM and the result showed achievement of 40% power saving.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.41 no.11
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• pp.1456-1462
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• 2016

In this paper, we apply a chord progression learning model to a rule-based generation of a four-part chorus. The proposed system is given a 32-note melody line and completes the four-part chorus based on the rule of harmonics, predicting the chord progression with the CRBM model. The data for the training model was collected from various harmony textbooks, and chord progressions were extracted with key-independent features so as to utilize the given data effectively. It was shown that the output piece obtained with the proposed learning model had a more natural progression than the piece that used only the rule-based approach.