• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.4
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• pp.74-84
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• 2016

Open Source Software (OSS) is a new paradigm for software development. The system is based on the notion of giving software (including sources) away for free, and making money on services, customizing and maintenance. For these reasons, many software companies have considered adopting and using OSS in Software R&D. A variety of factors may influence the use of decision making of OSS. The objective of this study was to explore the significant factors affecting the use decision of OSS and the job performance of OSS usage in software R&D. A research model was suggested based on the TOE Framework and Information Systems Success Model. These findings show that technical benefits of OSS have significant effects on OSS use. The technical benefits of OSS, and organization context, in turn, have significant effects on the use of OSS. On the other hand, the technical risks of OSS and the environment context have no effects on OSS use. In addition, OSS use and user satisfaction have significant effects on the individual job performance. This research contributes towards advancing the theoretical understanding of the OSS Benefits and Performance in Software Development.

• Journal of Animal Science and Technology
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• v.45 no.5
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• pp.695-702
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• 2003

Nucleolus Organizer Regions (NORs) are the specific chromosome sites where ribosomal genes are located and highly expressed. We have applied the AgNOR staining to identify the distribution of NORs in the chromosomes of Korean Cattle. We have also studied the NORs pattern on the cells originated from different breeds, tissues and sex. Peripheral blood from forty-four Korean Cattle and Holstein was cultured for chromosme preparation. The fibroblast culture from biopsied ear skins was also conducted for chromosome analysis. The distribution of NORs was analyzed by sequential Ag staining and G-banding on metaphases of the cells. In Korean Cattle, the NORs are localized on the telomeres of the five chromosome pairs number 2, 3, 4, 11 and 28. The number of NORs per metaphase ranged from 2 to 10 giving a mean value of 5.6. The number of NORs per cell varied among individuals and cells within same individual. The size of NORs also differed in NO-chromosomes. The number of NORs was significantly different between Korean Cattle and Holstein, fibroblasts and lymphocytes, and male and female. However, the distribution and frequency of NORs were similar among the cells regardless of breeds, tissues, and sex.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.12A
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• pp.1225-1232
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• 2008

In this paper, we describe a compensation method of diurnal effect which is one of the factors giving large effect on the performance when using ground-wave signals like Loran-C for a backup and substitute navigation system of global satellite navigation system such as GPS, and currently many researches of the topics are doing in USA and in Europe. In order to compensate diurnal effect, we find periodic frequency components by using the Least Square Spectral Analysis (LSSA) method at first and then compensate the effect by subtracting the estimated compensation signal, obtained by using the estimated amplitude and phase of the individual frequency component, from the original signal. In this paper, we propose a simple compensation algorithm and analysis the performance through simulations. From the results, it is observed that the amplitude and phase can be estimated with under 5 % and 0.17 % in a somewhat poor receiving situation with 0 dB Signal to Noise Ratio (SNR). Also, we analyze the obtainable performance improvement after compensation by using the measured Loran-C data. From the results, it is observed that we can get about 22 % performance improvement when a moving average with 5 minutes interval is employed.

• Journal of the Korean Geographical Society
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• v.48 no.6
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• pp.944-966
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• 2013

This study attempts to highlight the cultural importance of urban public space by analyzing the changes Tap-Gol Park from late 1990's to early 2000's, a park located in the heart of Seoul, underwent in its meanings and uses. Public space, a product of modern urban planning, is characterized by its openness and accessibility and represents the vitality of modern city, serving as a meeting place for citizens with different social backgrounds at such occasions as gatherings and festivals. While the government or a few dominant groups try to control the public and their behavior in public space by giving a specific meaning to it and specifying its use, people constantly set their foot in it and view the space as a place differently for each individual's personal or social reasons. It is therefore not very surprising that the meaning of public space has never been successfully defined. Following the traces of attempts to define the meaning of public space and considering how public space can be efficiently used will shed light on what types of groups, especially ages and classes participated in the contest for the use of public space and expressed their own cultures in urban society through various negotiations.

• Journal of Science Education
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• v.44 no.2
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• pp.133-144
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• 2020

As a part of the second-year monitoring study on the implementation of the 2015 revised science curriculum in middle schools, this study focuses more on examining middle school science teachers' perceptions on the process-based assessment (PBA). A total of 105 middle school science teachers (44 teachers from science leading schools, 61 teachers from ordinary schools) responded to the survey questionnaire, and 16 teachers participated in interviews. The results include teachers' perceptions on the changes in their teaching and assessment methods, some challenges of implementing PBA, and educational implications of PBA. Survey results indicate that the teachers perceived themselves using more PBA methods after the 2015 revised science curriculum was launched. The teachers in science-leading schools present statistically higher average scores to the items on the PBA utilization than the ones in ordinary schools. However, the teachers felt confused in conceptually differentiating PBA from prior performance-based assessment. They also experienced some conflicts when implementing PBA under the achievement-oriented school atmospheres. In addition, they often faced difficulties in securing objectivity and reliability of PBA and felt the burden of evaluating individual students. This study suggests the necessity of giving more authority and trust to science teachers regarding PBA, constructing more supportive environment to cultivate teacher competency as evaluation experts, and the need to reduce task burden. However, some teachers who actively implemented PBA express some level of satisfaction as observing students' positive reaction to PBA.

• The Korean Journal of Archival Studies
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• no.55
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• pp.73-96
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• 2018

Andy Warhol's "Time Capsule" is an individual's daily record, but it can also be evaluated as an artwork. Andy Warhol kept most of his items in boxes until his death in 1974. Warhol's personal records contained receipts, invitations, memos, letters, voice tapes, newspapers, magazines, fan letters, mails, and exhibit materials. Andy Warhol's act of collecting items was continuous and repetitive, giving others a deeper insight into the artist's life. Warhol constantly recorded daily repetitive behaviors such as the people he met, a list of books he bought, and movies he had watched as a record producer. In addition, occasionally, he was in the position of an archivist, collecting and organizing others' records. As such, he expressed his passion for recording his surroundings. His intentionally produced or collected records contain valuable information, not only of himself but also of the people surrounding him. His personal records show that it is the material that enables people to understand and appreciate his relationship with contemporary artists, as well as the artist's education and the conditions during his time.

• The Korean Journal of Archival Studies
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• no.21
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• pp.117-167
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• 2009

Assemblypersons' activities have organizational and individual nature. The activities of assemblypersons and their assistant staffs become a motive for major work performance of Korean legislature, and are also critical public services affecting contemporary political history, history of political parties and history of assemblyperson's hometown. Moreover, their activities are also characterized by work performance in favor of assemblyperson's personal interests to effectively communicate his or her achievements during term of office to electors with a view to winning reelection after the end of 4-year term of office. Assemblyperson's organization produces various types of record in the performance of these works. From the viewpoint of public archive as a product of assemblypersons' public service performance and from their own personal viewpoints, they can create their own identity by arranging their personal records that can demonstrate their own political philosophy, policy orientation, achievements during term of office, and personal features. In addition, their personal records can have much more values and significance in the sense that those records are available to electors to make it possible to highlight their own images in objective and reliable manner. Conclusively, this study underlined that the efforts for assemblypersons and their assistant staffs to keep their records well could be helpful to streamline their internal works and be also helpful for personal interests of assemblypersons. And this study proposed procedures and methods for deducing and screening a list of production archives to meet a viewpoint of streamlined internal works and needs for keeping personal records, ultimately with a view to giving practical helps for these works.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.3
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• pp.65-70
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• 2019

The purpose of this study is to understand the college students' needs for software curriculum which based on surveys from educational satisfaction of the software lecture evaluation, as well as to find out the improvement plan by applying the text content analysis method. The research method used the text content analysis program to calculate the frequency of words occurrence, key words selection, co-occurrence frequency of key words, and analyzed the text center and network analysis by using the network analysis program. As a result of this research, the decent points of the software education network are mentioned with 'lecturer' is the most frequently occurrence after then with 'kindness', 'student', 'explanation', 'coding'. The network analysis of the shortage points has been the most mention of 'lecture', 'wish to', 'student', 'lecturer', 'assignment', 'coding', 'difficult', and 'announcement' which are mentioned together. The comprehensive network analysis of both good and shortage points has compared among key words, we can figure out difference among the key words: for example, 'group activity or task', 'assignment', 'difficulty on level of lecture', and 'thinking about lecturer'. Also, from this difference, we can provide that the lack of proper role of individual staff at group activities, difficult and excessive tasks, awareness of the difficulty and necessity of software education, lack of instructor's teaching method and feedback. Therefore, it is necessary to examine not only how the grouping of software education (activities) and giving assignments (or tasks), but also how carried out group activities and tasks and monitored about the contents of lectures, teaching methods, the ratio of practice and design thinking.

• (The)Study of the Eastern Classic
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• no.41
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• pp.477-516
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• 2010

The Korean art history academia has lately been carrying out active research on the Korean art market and art collectors. This area of research is significant in that it attempts to overcome the limitations of previous research trends focused on tracing back and analyzing preeminent masters, their schools and their influence, and approach new subject matters such as art and society, circulation and consumption of art works, which were unapproachable with previous research methods. This paper examines the life, artwork and art collection activities of Songeun(松隱) Yi Byeong-jik(李秉直: 1896-1973), an outstanding painter, calligrapher and art collector during the Japanese colonial period. The primary purpose of this paper is to advance the research project the author has recently initiated on modern Korean art collectors by reconstructing parts of this major art collector's individual lifestyle and to generally identify the art collection activities and the art works that he kept. Yi Byeong-jik, one of the preeminent art collectors during the colonial period, disposed his voluminous collection through two auctions in 1937 and 1941, and then held another auction two weeks before the onset of the Korean War on June 25, 1950 to sell off the remaining works. It seems that the reason why Yi had auctioned off his collections was for the purpose of investing in education. The tale that Yi safely kept 'Sam-guk-yu-sa(三國遺事),' which is considered a national treasure, even through the time of turbulence is evidence of his exemplary behavior as a model art collector. He may be one of the best examples of what an art collector should be in terms of giving back to the society and preserving things of beauty and value. However, one factor that limited and defined Yi's life was that he was a eunuch. This aspect of his life could be pointed out as the biggest factor that stopped him from becoming a mainstream participant in the art world despite his influence as a great painter, calligrapher, significant art collector, and discerning connoisseur.

• Knowledge Management Research
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• v.22 no.1
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• pp.309-330
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• 2021

The information security disclosure system (ISDS) has been implemented since 2016 to ensure the protection of stakeholders and the right to know, and to promote voluntary investment in information protection by companies. Regarding the information security disclosure system, there have been studies that urge the implementation of the system, but studies that analyze the contents disclosed after the implementation of the system or suggest improvement directions are few. In this study, the contents of the information security disclosure system that had been announced on the information security industry promotion portal until 2019 were analyzed, the current status was summarized, and the direction of system improvement was suggested. In some cases, companies that disclosed information through the disclosure system increased the number of personnel in charge and obtained certifications related to information security, but did not find any effect on the increase/decrease in investment. The current disclosure system has not been activated because it has difficulty in giving individual companies incentives to disclose. Thus, this study suggests the inclusion of ISDS to information security management system (ISMS), which is currently mandatory for certain companies. In the current disclosure system, it is difficult for the company's stakeholders or customers to check the contents of the disclosure. As a way to do this, a method of including in the contents of the personal information processing policy or the notification of the use of personal information was suggested.