• Journal of Korean Library and Information Science Society
• /
• v.50 no.4
• /
• pp.493-510
• /
• 2019

The purpose of this study is to lay the groundwork for internationalization of domestic journals in the field of Library and Information Sciences (LIS). This study analyzed the characteristics and trends of 7,302 papers from 38 SSCI journals and 768 papers from 4 domestic journals in LIS. Results show the publication and citation counts of domestic journals to be more evenly distributed than those of international journals, which suggests the presence of core international journals. In addition, citation rates and co-authored papers of international journals are shown to be much higher than that of domestic journals, suggesting that international journals publish research papers of higher impact and collaboration.

• Journal of the Korean Society of Fisheries and Ocean Technology
• /
• v.32 no.4
• /
• pp.356-362
• /
• 1996

In order to suggest the useful information of fishing ground, a data base system on 32bit personal computer was developed and handled by using the catch data of Korean tuna long -line. This data base system was programmed using Quick Basic, and consisted of three kinds of programs, one for displaying the catch rate on the fishing ground by fishing area and year ranges, another for indicating the catch rate or number on table or graph, and the other for estimating the fishing ground in economical points, mainly targeting total tunas, yellowfin and bigeye tuna respectively. When this system was started, the map of oceans such as the Pacific, the Indian and the Atlantic, is drawn on the monitor. And then the catch rates of all species and each one are indicated by the figured symbols on the sea divisions of$5^{\circ}$ space of latitute and longitude.

• The Journal of Society for e-Business Studies
• /
• v.25 no.2
• /
• pp.109-126
• /
• 2020

This study attempts to find out the characteristics of digital currency and currency transformation through the analytical descriptions of the literature. In the early days of the emergence of new currency, market-oriented autonomous monetary adjustment was made along with various attempts by the private sector, and then government-centered central currency management and coordination were made for the national monopoly of profits and power. Digital currency can be seen as the emergence of a new form of money that will bring about paradigm changes. CBDC can be divided into direct and indirect types. CBDC is expected to require a strategic approach by the government or firm as it will bring about changes in the ecosystem of related industries. Libra is a stablecoin designed to minimize price fluctuations, and if it succeeds in commercializing it, it is expected to bring about revolutionary changes in the financial industry around the world.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2013.08a
• /
• pp.230-230
• /
• 2013

플라즈마를 활용한 미세 패턴의 건식 식각은 반도체 소자 공정에 있어서 가장 중요한 기술 중 하나이다. 한편, 매년 발행되는 ITRS Roadmap 에 따르면 DRAM 의 1/2 pitch 는 감소하는 동시에 Contact A/R (Aspect Ratio) 는 증가하고 있다. 이러한 추세 속에서 기존의 공정을 그대로 활용할 경우 식각물의 프로파일 왜곡 혹은 휨 현상이 발생하고 식각 속도가 저하되며 이러한 특성들이 결과적으로는 생산성의 저하로 이어질 수 있다. 이러한 현상을 최소화하기 위해서는 무엇보다 독립된 plasma parameter 들이 식각물의 프로파일 혹은 식각 속도 등에 어떠한 영향을 주는 지에 대한 학문적 이해가 필요하다. 본 논문에서는 최소 CD (Critical Dimenstion) 100nm, 최대 A/R 30 인 HARC (High Aspect Ration Contact hole) 의 식각 특성이 plasma parameter 에 따라 어떻게 변하는지 확인해 보고자 한다. 산화물의 식각은 대표적인 high density plasma source 중의 하나인 ICP에서 진행하였으며 기존에 알려진 plasma parameter 에 더하여 자장의 인가가 산화물의 식각 특성에 어떠한 영향을 주는지 살펴보고자 전자석을 ICP 에 추가로 설치하여 실험을 진행하였다. 결과적으로, plasma parameter 에 따른 혹은 자장의 세기 변화에 따른 산화물의 식각 실험을 플라즈마 진단 실험과 병행하여 진행함으로써 다양한 인자에 따른 산화물의 식각 메커니즘을 정확하게 이해하고자 하였다. 실험 내용을 요약하면 다음과 같다. 먼저, 전자석의 전류 인가 조건에 따라 축 방향 혹은 반경 방향으로의 자장의 분포가 달라질 수 있음을 확인하였고 플라즈마 진단 결과 축 방향 혹은 반경 방향으로의 자장이 증가하였을 때 고밀도의 플라즈마가 형성될 수 있음은 물론 반경 방향으로의 플라즈마 밀도의 균일도가 향상됨을 확인할 수 있었다. 또한 ICP 조건에서 바이어스 주파수, 압력, 바이어스 파워, 소스 파워, 가스 유량 등의 plasma parameter 가 산화물의 식각 특성에 미치는 영향 및 메커니즘을 규명하였고 이 과정을 통해 최적화된 프로파일을 바탕으로 축 방향 혹은 반경 방향으로 증가하는 자장을 인가하였을 때 (M-ICP 혹은 자화 유도 결합 플라즈마) ICP 대비 산화물의 식각 속도가 증가함은 물론 PR-to-oxide 의 선택비가 개선될 수 있음을 확인할 수 있었다. 자장의 인가에 따른 산화물의 정확한 식각 메커니즘은 향후의 실험 진행을 통해 이해하고 이를 통해 궁극적으로는 산화물의 식각 공정이 나아가야 할 올바른 방향을 제시하고자 한다.

• Journal of KIISE:Software and Applications
• /
• v.33 no.6
• /
• pp.564-573
• /
• 2006

Temporal information plays an important role in natural language processing (NLP) applications such as information extraction, discourse analysis, automatic summarization, and question-answering. In the topic detection and tracking (TDT) area, the temporal information often used is the publication date of a message, which is readily available but limited in its usefulness. We developed a relatively simple NLP method of extracting temporal information from Korean news articles, with the goal of improving performance of TDT tasks. To extract temporal information, we make use of finite state automata and a lexicon containing time-revealing vocabulary. Extracted information is converted into a canonicalized representation of a time point or a time duration. We first evaluated the extraction and canonicalization methods for their accuracy and investigated on the extent to which temporal information extracted as such can help TDT tasks. The experimental results show that time information extracted from text indeed helps improve both precision and recall significantly.

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.26 no.3
• /
• pp.315-343
• /
• 2015

This study reviews articles in published in the The Journal of Korean Biblio Society for Library and Information Science (JKBSLIS) over 5 years from 2010 to 2014 for identifying the academic characteristics and the recent research trends of the JKBSLIS. 300 articles of JKBSLIS are analyzed in terms of bibliometric factors, research theme, methodology, author keywords, and intellectual structure comparing with 344 articles of the Journal of Korean Society for Library and Information Science (JKSLIS) and 283 articles of the Journal of Korean Society for Information Management (JKOSIM). In results, there is no differences between JKBSLIS and the other two journals, JKSLIS and JKOSIM regards on bibliometric factors. The domain research areas in the JKBSLIS are 'Information Services', 'Library Management' and 'Reading Education'. It is also found that the most popular methods are 'survey' and 'case study' and that the main research areas in the shown intellectual structure are 'public library & reading', 'academic library & collection management', and 'school library & information literacy education'.

• Journal of Internet of Things and Convergence
• /
• v.8 no.4
• /
• pp.25-40
• /
• 2022

This study aimed to understand the increasing number of elder abuses in South Korea, where entry into the super-aged society is imminent, by implementing text mining analysis. Korean Academic journals were obtained from 2004, the establishment year of the senior care agency, to 2021. We performed natural language processing of the titles, keywords, and abstracts and divided them into three segments of periods to identify latent meanings in the data. The results illustrated that the first section included 81 papers, the second 64, and the third 104 respectively, averaging 13.8 annually, which increased its numbers from 2014 until the decrease below the annual average in 2020. Word frequency demonstrated that the common keywords of the entire segments were 'elder abuse,' 'elders,' 'influences,' 'factors,' 'recognition,' 'family,' 'society,' 'prevention plans,' 'experiences,' 'abused elders,' 'abuse prevention,' 'depression,' etc., in consecutive order. TF-IDF indicated that 'influences,' 'recognition,' 'society,' 'prevention plans,' 'abuse prevention,' 'experiences,' 'depression,' etc., were the common keywords of all divisions. Network text analysis displayed that the commonly represented keywords were 'elder abuse,' 'elders,' 'influences,' 'factors,' 'characteristics,' 'recognition,' 'family,' 'prevention plans,' 'society,' 'abuse prevention,' and 'experiences' in the entire sections. concor analysis presented that the first segment consisted of 5 groups, the second 7, and the third 6. We suggest future directions for elder abuse research based on the results.

• Journal of the Korean Society of Fisheries and Ocean Technology
• /
• v.32 no.4
• /
• pp.340-355
• /
• 1996

In order to suggest the useful information of fishing ground, a data base system on 32bit personal computer was constructed and handled by using the catch data of Korean tuna long-line, catch by species, fishing time and place, fish price and etc. mainly from 1975 to 1992. The results obtained are as follows ; In the fishing ground displaying catch rate, the catch rate has reduced as time passed, and this penomenon was more evident in Indian. And yellowfin have high catch tate in the Western Pacific of low latitute region, bigeye tuna have in the Eastern. The region of high catch rate of bigeye tuna was moved from the Indian and the Atlantic to the Pacific. The patterns of catch numbers of yellowfin and bigeye tuna appeared nearly same that, having nothing to do with catch numbers in all oceans. The region of least catch was the Northwestern Pacific, the regions of most catch were the Western Indian and the Pacific of low latitute. As to simulation of fishing ground estimation, there were economical grounds in the Western Pacific of low latitute region, the Eastern Pacific of this, the Western Indian, the Eastern Indian, and the Atlantic, in order.

• Journal of Nutrition and Health
• /
• v.50 no.1
• /
• pp.10-24
• /
• 2017

Purpose: GST (glutathione S-transferase) M1 and T1 gene polymorphisms are known to affect antioxidant levels. This study was carried out to evaluate genetic susceptibility by measuring the effect of DNA damage reduction in the Korean diet by vegetable food according to GST gene polymorphisms using the ex vivo method with human lymphocytes. Methods: Vegetable foods in the Korean diet based the results of the KNHANES V-2 (2011) were classified into 10 food groups. A total of 84 foods, which constituted more than 1% of the total intake in each food group, were finally designated as a vegetable food in the Korean diet. The Korean diet applied in this study is the standard one-week meals for Koreans (2,000 Kcal/day) suggested by the 2010 Dietary Reference Intakes for Koreans. Ex vivo DNA damage in human lymphocytes was assessed using comet assay. Results: In the Korean food group, the DNA damage protective effect of GSTM1 and GSTT1 was found to be greater in mutant type and wild-type, respectively. and the DNA damage protective effect according to the combined genotype of GSTM1 and GSTT1 was different depending on the food group. On the other hand, in Korean Diet, the DNA damage protective effect appeared to be larger in GSTM1 wild-type than in mutant type and was found to not be affected by GSTT1 genotype. Conclusion: These results can be used as basic data to demonstrate the superiority of the antioxidant function of Korean dietary patterns and food groups. Furthermore, it may be a starting point to begin research on customized antioxidant nutrition according to individual genes.