• Nuclear Engineering and Technology
• /
• v.55 no.2
• /
• pp.516-522
• /
• 2023

The co-precipitation process plays a key role in the decontamination of radionuclides from low and intermediate levels of liquid waste. For that reason, the removal of Cs ions from waste solution by the co-precipitation method was carried out. A simulated liquid waste (¹³³Cs) was prepared from a 0.1 M CsCl solution, while wastewater generated by washing steel ash served as a representative of radioactive cesium solution (¹³⁷Cs). By co-precipitation, potassium ferrocyanide was applied for the adsorption of Cs ions, while nickel nitrate and iron sulfate were selected for supporting the precipitation. The amount of residual Cs ions in the CsCl solution after precipitation and filtration was determined by ICP-OES, while the radioactivity of ¹³⁷Cs was measured using a gamma-ray spectrometer. After cesium removal, the amount of cesium appearing in both XRD and SEM-EDS was analyzed. The removal efficiency of ¹³³Cs was 60.21% and 51.86% for nickel nitrate and iron sulfate, respectively. For the ash-washing solution, the removal efficiency of ¹³⁷Cs was revealed to be more than 99.91% by both chemical agents. This implied that the co-precipitation process is an excellent strategy for the effective removal of radioactive cesium in waste solution treatment.

• Journal of Digital Convergence
• /
• v.13 no.11
• /
• pp.373-381
• /
• 2015

The public organization in the metropolitan area moved to regional province by Regional Innovation Policy in South Korea. This policy was settled to solve the problem of concentration in metropolitan areas and underdeveloped regions caused by industrial development strategy for 40 years from 1960s till 2000s. Government decided the plan under the judgement that moving public organization (or institutions) is one of National Innovation Strategy for balanced development. Furthermore, Central organizations/institutions were to be the subject of regional innovation by leading the regional innovation and building a new regional innovation system. The Purpose of this study is finding out the new direction of regional innovation paradigm and a new regional innovation system to be changed after previous public organization moving from metropolitan area to region province. And this study pointed up the problem between plan and process of Organization Removal, suggested the topics for success of New RIS, and prepared more details methods in future study.

• 한국정보컨버전스학회:학술대회논문집
• /
• 2008.06a
• /
• pp.157-160
• /
• 2008

The pursuit of efficiency is taken for granted in today's public administration, and the limit of this study exists in the point that we should carefully deal with combining the redundancy scheme to the public administration. Accordingly, although this study should suggest the specific plans and backgrounds of the needs for the redundancy, it will only find out the applicability of the redundancy to the public administration for its purpose. Redundancy means the excess or superfluity in something, which means the surplusage status ranging from the wasteful and excessive supplies, insignificant additions, to the surplusage in a legal pleading. The emphasis of this study is placed on the changes in the rigidity in believing that the removal of the redundancy from the public administration is the best option in any case of the efficiency. In addition, the necessity of the overlapped organization should not be neglected by the concept of the efficiency. Indeed, it is necessary to correct the overlapped function of superfluity and ambiguity public administration, in order to remove the neglect conflicts between the organizations, to guarantee the inconsistency in the public administration and to ensure the efficiency in the public administration volunteering.

• Journal of Preventive Medicine and Public Health
• /
• v.53 no.3
• /
• pp.171-174
• /
• 2020

The coronavirus disease 2019 (COVID-19) pandemic has not only caused significant challenges for health systems all over the globe but also fueled the surge of numerous rumors, hoaxes, and misinformation, regarding the etiology, outcomes, prevention, and cure of the disease. Such spread of misinformation is masking healthy behaviors and promoting erroneous practices that increase the spread of the virus and ultimately result in poor physical and mental health outcomes among individuals. Myriad incidents of mishaps caused by these rumors have been reported globally. To address this issue, the frontline healthcare providers should be equipped with the most recent research findings and accurate information. The mass media, healthcare organization, community-based organizations, and other important stakeholders should build strategic partnerships and launch common platforms for disseminating authentic public health messages. Also, advanced technologies like natural language processing or data mining approaches should be applied in the detection and removal of online content with no scientific basis from all social media platforms. Furthermore, these practices should be controlled with regulatory and law enforcement measures alongside ensuring telemedicine-based services providing accurate information on COVID-19.

• Journal of Korean Library and Information Science Society
• /
• v.7
• /
• pp.177-206
• /
• 1980

Public library legislation is the essential means of providing for all the citizen in modern society with a standard public library service. We can trace the origin of that back to the Public Libraries Act 1850 in England. This paper is reviewing all the measures concerning public libraries of England since then in order to find out some guidelines for revision of the Korean Library Law enacted in 1963. Although Public Libraries Act 1850 was an output of a series of social reform movement in the 19th century, it established first the provision of public library service su n.0, pported by public funds. However the Act had several restrictions hindering public library service from making progress. These are: 1. Adoptive legislation in nature 2. Limitation of the size of population and rate income 3. Small library authorities 4. Procedure for adoption by public meeting 5. Restrictions on the ways in which rate income might be spent 6. No governmental organization to direct or control for a standardized public library service 7. No cooperative schemes among libraries. Subsequent development was directed largely to removal of those limitations. The present Public Libraries Act 1964 as a model of public library legislation was enacted on the basis of such reports as Kenyon, McColvin, Roberts, and Bourdillon. All but the problem of small library authorities were removed with this new Act. The final object could be achieved by the Local Government Act 1974 which reorganized existing 383 small authorities into new 115 ones the average population of which was 280, 000. Now, McColvin's dream of 30 years could be fulfilled in the late 70's. He argued that the minimum size of population of a viable authority should be 300, 000. Although the effect of the 1964 Act on the development of public library services in England was great, there must be some considerations as to the provisions of public library objective, government funding for library services, free use of library materials to all regardless of residence, and placement of library committee within the authority.

• Journal of the Korean Society for Library and Information Science
• /
• v.43 no.3
• /
• pp.5-29
• /
• 2009

The purpose of this study is to diagnose the changes, complexity and ill effects of the public library administrative system in Korea, to analyze its previous research and improvement issues, and to suggest reform plans and subsequent action. To do so, the author has proposed a unification model for the library administrative system, the library status in the local administrative organization, and the library management plan of the local government. And the author has suggested various subsequent actions for the unification of the library administrative system, that is, the transfer of property, relief of the financial burden, removal of the disadvantages caused by the status change, adjustment of the library director's position, improving the personnel system of librarianship, and amendments to the relevant laws and regulations.

• Journal of Intelligence and Information Systems
• /
• v.21 no.1
• /
• pp.143-159
• /
• 2015

Predicting IT trends has been a long and important subject for information systems research. IT trend prediction makes it possible to acknowledge emerging eras of innovation and allocate budgets to prepare against rapidly changing technological trends. Towards the end of each year, various domestic and global organizations predict and announce IT trends for the following year. For example, Gartner Predicts 10 top IT trend during the next year, and these predictions affect IT and industry leaders and organization's basic assumptions about technology and the future of IT, but the accuracy of these reports are difficult to verify. Social media data can be useful tool to verify the accuracy. As social media services have gained in popularity, it is used in a variety of ways, from posting about personal daily life to keeping up to date with news and trends. In the recent years, rates of social media activity in Korea have reached unprecedented levels. Hundreds of millions of users now participate in online social networks and communicate with colleague and friends their opinions and thoughts. In particular, Twitter is currently the major micro blog service, it has an important function named 'tweets' which is to report their current thoughts and actions, comments on news and engage in discussions. For an analysis on IT trends, we chose Tweet data because not only it produces massive unstructured textual data in real time but also it serves as an influential channel for opinion leading on technology. Previous studies found that the tweet data provides useful information and detects the trend of society effectively, these studies also identifies that Twitter can track the issue faster than the other media, newspapers. Therefore, this study investigates how frequently the predicted IT trends for the following year announced by public organizations are mentioned on social network services like Twitter. IT trend predictions for 2013, announced near the end of 2012 from two domestic organizations, the National IT Industry Promotion Agency (NIPA) and the National Information Society Agency (NIA), were used as a basis for this research. The present study analyzes the Twitter data generated from Seoul (Korea) compared with the predictions of the two organizations to analyze the differences. Thus, Twitter data analysis requires various natural language processing techniques, including the removal of stop words, and noun extraction for processing various unrefined forms of unstructured data. To overcome these challenges, we used SAS IRS (Information Retrieval Studio) developed by SAS to capture the trend in real-time processing big stream datasets of Twitter. The system offers a framework for crawling, normalizing, analyzing, indexing and searching tweet data. As a result, we have crawled the entire Twitter sphere in Seoul area and obtained 21,589 tweets in 2013 to review how frequently the IT trend topics announced by the two organizations were mentioned by the people in Seoul. The results shows that most IT trend predicted by NIPA and NIA were all frequently mentioned in Twitter except some topics such as 'new types of security threat', 'green IT', 'next generation semiconductor' since these topics non generalized compound words so they can be mentioned in Twitter with other words. To answer whether the IT trend tweets from Korea is related to the following year's IT trends in real world, we compared Twitter's trending topics with those in Nara Market, Korea's online e-Procurement system which is a nationwide web-based procurement system, dealing with whole procurement process of all public organizations in Korea. The correlation analysis show that Tweet frequencies on IT trending topics predicted by NIPA and NIA are significantly correlated with frequencies on IT topics mentioned in project announcements by Nara market in 2012 and 2013. The main contribution of our research can be found in the following aspects: i) the IT topic predictions announced by NIPA and NIA can provide an effective guideline to IT professionals and researchers in Korea who are looking for verified IT topic trends in the following topic, ii) researchers can use Twitter to get some useful ideas to detect and predict dynamic trends of technological and social issues.